Relationship between Health Counselor Characteristics and Counseling Impact on Individuals at High-Risk for Lifestyle-Related Disease: Sub-Analysis of the J-HARP Cluster-Randomized Controlled Trial
by
, , , , and
Midori Noguchi
1,*
,
Minako Kinuta
1,2,
Toshimi Sairenchi
3,
Miyae Yamakawa
4,
Keiko Koide
5,
Shoko Katsura
6,
Kazue Matsuo
7,
Shizuko Omote
8,
Hironori Imano
1,
Hitoshi Nishizawa
9,
Iichiro Shimomura
9,
Hiroyasu Iso
1,10 and
On behalf of the J-HARP Research Group
† 1
Public Health, Department of Social Medicine, Graduate School of Medicine, Osaka University, Suita-shi 565-0871, Japan
2
Department of Public Health, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama-shi 700-8558, Japan
3
Center for Research Collaboration and Support, Comprehensive Research Facilities for Advanced Medical Science, Dokkyo Medical University, Mibu-machi 321-0293, Japan
4
Geriatric Nursing, Division of Health Sciences, Graduate School of Medicine, Osaka University, Suita-shi 565-0871, Japan
5
Division of Health Sciences, Graduate School of Medicine, Osaka University, Suita-shi 565-0871, Japan
6
Graduate School of Nursing, Miyagi University, Taiwa-cho 981-3298, Japan
7
Department of Public Health Nursing, Fukuoka Jo Gakuin Nursing University, Fukuoka-shi 811-1313, Japan
8
Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa-shi 920-8640, Japan
9
Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita-shi 565-0871, Japan
10
Institute for Global Health Policy Research, Bureau of International Health Cooperation, National Center for Global Health and Medicine, Tokyo 162-8655, Japan
*
Author to whom correspondence should be addressed.
†
Membership of the J-HARP Research Group is listed in Appendix A.
Int. J. Environ. Res. Public Health 2022, 19(11), 6375; https://doi.org/10.3390/ijerph19116375
Submission received: 31 March 2022
/
Revised: 14 May 2022
/
Accepted: 18 May 2022
/
Published: 24 May 2022
(This article belongs to the Special Issue 2nd Edition of Primary Healthcare)
Abstract
:Early diagnosis and treatment are necessary to prevent lifestyle-related diseases among high-risk individuals. This study aimed to examine the impact of counselor characteristics on clinic visits among individuals at high risk for lifestyle-related diseases. A total of 8975 patients aged 40 to 74 years with lifestyle-related comorbidities, who underwent an annual health checkup and received health counseling, were included in this study. Data intervention timing, mode of counseling, number of counseling sessions, and explanation methods were collected. We assessed the impact of counselor characteristics, including profession (public health nurse, clinical nurse, and nutritionist), age, and years of counseling experience, on counseling outcomes. The probability ratios (95% confidence intervals) of clinic visits were 1.22 (1.11–1.35) for public health nurses and 1.04 (0.90–1.20) for nurses compared with nutritionists. After adjustment for participant and counselor characteristics and initial timing, mode, and number of counseling sessions, the corresponding probability ratios (95% confidence intervals) were 1.16 (1.05–1.29) and 1.12 (0.95–1.31), respectively. Counselor age and years of experience did not influence clinic visits of the target population. Public health nurses were more effective in increasing clinic visits among the target population owing to their profession-specific knowledge, skills, and experience.
1. Introduction
Increasing mortality rates due to lifestyle-related diseases are a global challenge [1]. Identification of high-risk individuals, lifestyle modifications, and prompt referral to physicians as and when required are basic strategies employed for the prevention of serious lifestyle-related diseases, such as stroke, ischemic heart disease, and chronic kidney disease [2]. High-risk individuals require medical intervention to prevent or manage disease; however, the necessary interventions are often delayed in asymptomatic cases [3]. In Japan, health counseling is provided to individuals whose health checkup findings indicate a high risk of disease with the aim of encouraging clinic visits. Nevertheless, even among the referred individuals, the uptake of clinic visits is low [4]. There are many barriers to actions for disease prevention and health promotion [5,6]. Life-style-related diseases, such as hypertension, diabetes, and hyperlipidemia, often yield no symptoms even at very high risk, making it difficult for some of the patients to take actions for visiting clinics to seek treatment under the co-payment policy [7].
Standardized health counseling for individuals at high risk of hypertension, diabetes, proteinuria, and high levels of low-density lipoprotein cholesterol (for men) helps accelerate clinic referral, as demonstrated by the Japanese trial in high-risk individuals—a nurse-led, community-based prevention program for lifestyle-related diseases [8]. In this cluster-randomized controlled trial, the cumulative proportions of clinic visits at 12 months were over 40% higher in the group receiving our original health counseling than in the group receiving standard care [9].
In Japan, public health nurses as well as clinical nurses and nutritionists may provide health counseling after annual health checkups. This study aimed to examine the impact of health counselor characteristics on the outcomes of counseling in high-risk individuals.
2. Materials and Methods
The present study involved conducting a secondary analysis of data from a cluster randomized clinical trial conducted in community settings (registration code: UMIN000014012). The trial recruited municipalities with >2000 participants, within the age range of 40–74 years, who underwent health checkups; all participants were covered by the national health insurance. Forty-three municipalities were randomized to 21 intervention and 22 standard care municipalities via pairwise matching randomization. The details of randomization methods and primary findings are available elsewhere [5,6].
The subjects of the present study were 10,519 individuals at a high risk for lifestyle-related disease among the 21 intervention municipalities. Risk factors included hypertension (grade II or higher: systolic blood pressure of ≥160 mmHg and/or diastolic blood pressure of ≥100 mmHg), diabetes mellitus (hemoglobin A1c levels of ≥7.0%, fasting glucose levels of ≥7.22 mmol/L, or non-fasting glucose level of ≥10.0 mmol/L), dyslipidemia (for men, low-density lipoprotein cholesterol levels of ≥4.55 mmol/L), and proteinuria (≥2+ in urinalysis). Data on risk factors were collected during the annual health checkup in 2014 and 2015. We excluded individuals aged <40 years and ≥75 years (n = 25) and those who had already visited physicians for conditions associated with the risk factors of interest (n = 1517). Finally, a total of 8977 participants were included in the analysis (Figure S1). The characteristics examined were age, professional background of counselor (public health nurse, clinical nurse, and nutritionist), and years of counseling experience for general and lifestyle-related diseases. We conducted a secondary analysis of high-risk individuals who received interventional counseling in a large cluster-randomized controlled trial to assess the impact of counselor characteristics on counseling outcomes. The number of participants assigned to public health nurses, clinical nurses, and nutritionists were 6221, 596, and 892, respectively, and among them, only 88 were men.
2.1. Participant Characteristics
Health checkups included questionnaires, interviews, and physical examinations involving standard methods prescribed by the Ministry of Health, Labor, and Welfare. Interviews were performed to record smoking status (non-smoker/ex-smoker/current smoker), drinking status (never/sometimes/daily), and medication use for hypertension, diabetes, and dyslipidemia.
2.2. Health Counselor Characteristics
Data on age, sex, and profession (public health nurse, clinical nurse, and nutritionist) of the health counselor, along with years of experience in general health counseling and years of experience in health counseling for lifestyle-related diseases were obtained using a self-administered questionnaire.
2.3. Health Counseling
The counseling model, known as the enhanced referral of high-risk individuals to clinics, was developed based on the health belief model [10]. The counseling sessions aim to provide high-risk individuals with information on the internal working of their bodies and future risk of lifestyle-related diseases. The model and our counseling method are de-scribed in another study [8].
During counseling sessions, health counselors used supplemental tools to explain the physiology of metabolism and mechanisms of diseases associated with high blood pressure, hyperglycemia, and hyperlipidemia (perceived susceptibility). They provided information on how blood vessels in the brain, heart, and kidneys are damaged and raised awareness on serious health problems, such as stroke, cardiovascular disorders, and renal failure, that are likely to occur if the damage is untreated (severity). These diseases are detrimental to the patient’s physical and economic life (severity). They also provided information on the potential benefits of visiting a physician (benefit) and inquired barriers to treatment, including being too busy, fear, annoyance, and lack of family support and costs (barrier). The counseled high-risk individuals were expected to make their own decisions (self-efficacy) and take the appropriate action (i.e., visiting a physician to seek further counseling and treatment). Patients were expected to receive treatment, improve their life-style habits, and continue to participate in health checkups the following year.
The counselors were trained during 2- to 3-day training sessions (seminar/workshop/group conference) held three to five times per year to dispense the knowledge, skills, and techniques required for counseling and the know-how to deal with difficult cases [8]. The counselors who were unable to participate in these training sessions received recordings for e-learning. The training sessions included the following components:
- (a)
- Mechanisms by which hypertension, hyperglycemia, and high levels of low-density lipoprotein cholesterol contribute to atherosclerosis (large vessel pathology), arteriolosclerosis (small vessel pathology), cardiovascular sclerotic arteriosclerotic diseases, and chronic kidney disease;
- (b)
- Health checkup result assessment skills to explain the pathophysiology of outcomes;
- (c)
- Need for medical treatment of hypertension, diabetes, high low-density lipoprotein cholesterol levels, and chronic kidney disease;
- (d)
- How to use information on health insurance claims;
- (e)
- Methods and implementation of health counseling based on the modified health belief model;
- (f)
- How to deal with negative responses from participants;
- (g)
- How to cooperate with primary care physicians.
In addition to the training sessions, researchers visited municipalities and provided technical support directly to the health counselors. Health counseling was monitored and judged satisfactory when the counseling record was filled properly in the items of duration time of counseling, calendar time of health checkups, mode of counseling (home visit, face-to face interview in a public place or telephone call), and the use of Supplemental Materials.
2.4. Counseling Time and Mode
During the first year following the index health checkup, counseling was provided thrice: at 1–3 months, 4–6 months, and 7–9 months post health checkup. The counseling was defined as complete if the health counseling lasted over 10 min. The mode of initial health counseling was primarily a home visit and secondarily a face-to-face meeting at a municipal office or public health center; when neither of these modes was suitable, health counseling was provided over the phone.
2.5. Surveillance for Clinic Visits
Each municipality held insurance qualification and medical checkup data. Trained staff at each municipality office used a personal computer to link these data sets via personal identifiers to create a corresponding table for municipal and research identifiers. Staff members then deleted the municipal office identifier, name, and date of birth from the datasets and retained the research identifier and birth year and month. The data were transmitted to the central data center via registered mail. Data on health counselor characteristics and health counseling records with research identifiers were also transmitted to the central data center via registered mail, and all information was keyed into the digital dataset for analysis.
2.6. Statistical Analysis
The Kaplan–Meier method was used to calculate the cumulative proportions of clinic visits by high-risk individuals (hypertension, diabetes, dyslipidemia, and/or proteinuria) according to the counselor’s age (20–29, 30–39, 40–49, and ≥50 years), profession (public health nurse, clinical nurse, and nutritionist), years of experience in general counseling (<3, 3–9, 10–19, and ≥20 years), and years of experience in lifestyle disease counseling (<3, 3–5, and ≥6 years). Differences in these characteristics were evaluated using the log–rank test. Sex was not used for stratification because 98.9% of the counselors were women.
The rate ratios of cumulative proportions and their 95% confidence intervals corresponding to counselor characteristics were calculated using the Cox proportional hazard model adjusting for participants’ age, sex, smoking status (non-smokers/ex-smokers/current smokers), alcohol consumption (never/sometimes/daily), and risk factors (hypertension, diabetes mellitus, dyslipidemia for men, and proteinuria). Further adjustment was performed mutually for counselor age, years of experience in general counseling, years of experience in lifestyle disease counseling, and profession. All statistical analyses were performed using SAS 9.4 (SAS Institute Inc., Cary, NC, USA); two-tailed tests were employed, and p-values of <0.05 were considered statistically significant.
2.7. Ethical Approval and Informed Consent
Participation in the study was conducted on an opt-out method through the web-sites of all participating municipalities and Osaka University with description of the purpose and methods of the study and the option of refusing to participate. The study was approved by the Osaka University Ethics Committee (No.13237-6).
3. Results
Table 1 shows the characteristics of participants and counselors as well as the mode, initial timing, and number of counseling sessions according to the counselor’s profession. The mean age of the participants, proportions of grade II or higher hypertension, diabetes mellitus, and dyslipidemia did not differ significantly among the patients assigned to the three profession-related groups.
The mean age of counselors was lower for public health nurses and nutritionists than for clinical nurses. The number of years of experience in general health counseling was greatest for public health nurses, intermediate, for clinical nurses and smallest for nutritionists. The number of years of experience in lifestyle-related disease counseling was greatest for clinical nurses and intermediate for public health nurses and smallest for nutritionists. The proportion of home visits was highest for clinical nurses, intermediate for public health nurses, and lowest for nutritionists, while that of face-to-face meetings in a public place was higher for public health nurses and nutritionists than for clinical nurses. Public health nurses had the highest proportion of combined home and public face-to-face meetings. The initial timing of counseling was shorter for public health nurses and nutritionists than for clinical nurses. The number of counseling sessions did not vary significantly among the three professions.
The proportions of hypertension, diabetes mellitus, dyslipidemia, and proteinuria did not differ among the four age groups. The proportion of public health nurses was ≥85% in the 20–49-years age group and approximately 60% in the ≥50-years age groups. The numbers of years of experience in general counseling and lifestyle-related disease counseling increased with increasing age. The proportion of home visits was higher for counselors aged ≥40 years than for those aged 20–39 years. The initial timing of counseling and number of counseling sessions were similar among all age groups (Table 2).
The proportions of patients with hypertension, diabetes mellitus, dyslipidemia, and proteinuria did not differ among the groups defined by counselors’ years of experience. On comparison of the groups by years of experience, it was found that the proportions of home visits and face-to-face meetings in public places increased with counselor experience; in contrast, the proportion of incomplete counseling decreased with experience. The initial timing of counseling and number of counseling sessions were similar among the groups defined by experience (Table 3 and Table S1).
The proportions of hypertension, diabetes mellitus, dyslipidemia, and proteinuria did not differ substantially among the groups defined by the counselors’ years of experience in lifestyle-related disease counseling (Table S1). The proportion of public health nurses progressively decreased in groups with increasing years of experience. The proportions of home visits and face-to-face meetings were higher and lower with increasing years of experience, respectively. The initial timing of counseling and number of counseling sessions were similar among the groups defined by years of experience.
Cumulative proportions of clinic visits at 3, 6, and 12 months were consistently highest for public health nurses, intermediate for clinical nurses, and lowest for nutritionists (except for clinical nurses at 3 months) (Table 4, Figure 1). Multivariable probability ratios (95% confidence interval) of clinic visits for public health and clinical nurses were 1.22 (1.11–1.35) and 1.04 (0.90–1.20), respectively, relative to that for nutritionists (Table 4). Neither counselor age nor experience affected clinic visits (Table 4, Figures S2–S4).
4. Discussion
In this sub-analysis of a large clinical trial dataset, counselors who were public health nurses achieved a higher cumulative proportion of clinic visits than their counterparts. Neither counselor age nor experience affected clinic visits.
The Quad Council Coalition list of major competency categories for public health nurses included the following eight categories: (1) assessment and analytic skills, (2) policy development/program planning skills, (3) communication skills, (4) cultural competency skills, (5) community dimensions skills, (6) public health science skills, (7) financial planning, evaluation, and management skills, and (8) leadership and systems thinking skills [11]. Communication skills included critical thinking and complex decision-making skills, adapting to individuals, families, workplaces, and communities. The eight competency categories could contribute to acquire the sufficient information on the counselee’s demographics, including age, sex, place of residence, occupation, family composition, and socioeconomic status, which can affect health behaviors [12]. Public health nurses in Japan are responsible for public health activities through home visits to residents and are trained to identify key individual health behaviors, such as diet, smoking and drinking status, clothing, and household environment during face-to-face conversations to improve their health behaviors [13].
On the other hand, the competencies of clinical nurses are (1) embodying a helping role, (2) teaching and coaching, (3) diagnostic functions, (4) managing situations, (5) therapeutic interventions, (6) quality control, and (7) undertaking a work role in the context of care provided to individual patients [14]. Namely, the competencies focus more on taking care of individual patients and less on perspectives of disease prevention and health promotion, which contrast with those of public health nurses.
According to the WHO’s five-dimensional adherence model [15,16], the factors related to adherence are socioeconomic, healthcare system, condition-related, therapy-related, and patient-related factors. In this study, we focused on one of the health care system factors, i.e., competency of health providers as the exposure variable. As for confounding variables, we used the demographic variables (age and sex) as socioeconomic factors and comorbidities (hypertension, diabetes mellitus, dyslipidemia, and proteinuria) as condition-related factors. Therapy-related factors were not considered because the participants were not treated before the counseling. Patient-related factors such as knowledge and self-efficacy were regarded as intermediate variables between health counseling and the outcome of clinical visits.
The present finding that public health nurses had a higher proportion of home visits and face-to-face sessions in public places than their counterparts is an indication of their expertise. Although the expected role of public health nurses varies by country [17,18], our results indicate the effectiveness of public health nurses at preventing lifestyle-related disease by encouraging clinic visits. Since clinical diagnosis and medical treatment for asymptomatic lifestyle-related diseases cause the patients to pay copayment [7], appropriate counseling is needed, especially for people with low income or economic burden due to health conditions of family members.
The strength of our study is its large sample size, which enables to evaluate differences in outcomes among different professional groups under the same intervention program. There are several limitations to our study. First, the clinical nurses were, on average, over 10 years older than public health nurses and nutritionists, which made it difficult to adjust for age sufficiently. Second, unmeasured factors, such as socioeconomic factors, other than demographic variables, such as education and income, as well as residual confounding factors may affect the present findings. Third, most of the counselors in our study were women, so our findings are not generalizable to male counselors. The proportion of men among public health nurses was only 1.9% in Japan [19].
5. Conclusions
The highest cumulative proportions of clinic visits among high-risk individuals were achieved by public health nurses, followed by clinical nurses and nutritionists, supporting the concept that public health nurses’ professional knowledge, skills, and experiences may improve the effectiveness of counseling. Public health nurses are expected to have a crucial role to accelerate clinical visits for high-risk individuals in the prevention of serious lifestyle-related diseases, such as stroke, ischemic heart disease, and chronic kidney disease.
Supplementary Materials
The following supporting information can be downloaded at: https://www.mdpi.com/article/10.3390/ijerph19116375/s1, Figure S1: Flowchart of the participants analyzed; Table S1: Characteristics of participants and counselors and the mode, initial timing, and number of counseling sessions according to years of experience for lifestyle-related disease counseling; Figure S2: The cumulative proportions of clinic visits for participants according to the health counselor’s age; Figure S3: The cumulative proportions of clinic visits for participants according to the years of experience in general counseling; Figure S4: The cumulative proportions of clinic visits for participants according to the years of experience in lifestyle-related disease counseling.
Author Contributions
M.N. was responsible for writing the manuscript; H.I. (Hiroyasu Iso) was responsible for the conception, design, and implementation of the study; M.N. was responsible for the implementation of the study; M.Y., K.K., S.K., K.M. and S.O. provided support to the intervention municipalities; T.S. was responsible for data collection and management; M.K. was responsible for data analysis; I.S., H.N. and H.I. (Hironori Imano) coordinated the study. All authors contributed to the interpretation and critical revisions of the manuscript; H.I. (Hiroyasu Iso) was the study guarantor. All authors have read and agreed to the published version of the manuscript.
Funding
Research funded by Health, Labour, and Welfare Sciences Research Grant (20132016) from the Ministry of Health, Labour, and Welfare as a Japan Strategic Clinical Trial.
Institutional Review Board Statement
This study was performed in accordance with the Declaration of Helsinki and the personal information protection laws and ethical guidelines for epidemiological research and was approved by the Osaka University Ethics Committee (No. 13237-6). Data entry for the trial was completed on 27 October 2016.
Informed Consent Statement
Informed consent was obtained in the form of opt-out on the web-site.
Data Availability Statement
On reasonable request, derived data supporting the findings of this study are available from the corresponding author after approval from the Ethical Committee of the Osaka University.
Acknowledgments
Study investigators are shown in Appendix A. We thank all J-HARP staff members, health professionals, and workers involved in the J-HARP study for their valuable help in data collection and follow-up.
Conflicts of Interest
The authors declare no conflict of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript or in the decision to publish the results.
Appendix A
Study Investigators: The members of the J-HARP study group included: Hiroyasu Iso (chairperson of the study), Osaka University Graduate School of Medicine; Iichiro Shimomura (chairperson of the research support team), Osaka University Graduate School of Medicine; Midori Noguchi (team leader for intervention support), Osaka University Graduate School of Medicine; Testuji Yokoyama (team leader for training); National Institute of Public Health; Toshiko Yoshida (team leader for monitoring); School of Nursing, Miyagi University; Isao Saito (team leader for determining endpoints); Ehime University Graduate School of Medicine; Gen Kobashi (team leader for data collection and management); Dokkyo Medical University School of Medicine; Ayumi Shintani (team leader for data analysis), Osaka City University Graduate School of Medicine.
Research coordination: Hitoshi Nishizawa, Akihiko Kitamura, Hironori Imano, Minako Kinuta, Mitsuyoshi Takahara, Takekazu Kimura, and Mari Tanaka, Osaka University Graduate School of Medicine.
Intervention support: Sumi Kojima, Amagasaki City; Kazue Matsuo, Fukuoka Jogakuin Nursing University; Shizuko Omote, Kanazawa University, Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences; Miyae Yamakawa, Osaka University Graduate School of Medicine; Shoko Katsura, Miyagi University School of Nursing; Keiko Koide, Osaka University Graduate School of Medicine; Michie Nomura, Ehime Prefectural University of Health Sciences, and Kyoko Izumi, Kyoko Izumi School of Nursing, Mukogawa Women’s University.
Training: Yukari Sugita, Chiba University Graduate School of Nursing; Yumiko Morinaga, National Institute of Public Health; and Kiyoko Makimoto, Konan Woman’s University.
Monitoring: Yukiko Anzai, Miyagi University School of Nursing; Miyuki Makaya, School of Nursing, Kitasato University; Akiko Kadoguchi, Sakakibara Heart Institute; Sayaka Kotera, Kobe University Graduate School of Health Sciences; Chikako Miura, Japan Association for Development of Community Medicine; Shino Bando, Miyagi University School of Nursing; Tomomi Yamada, Department of Medical Innovation, Osaka University Hospital; Daisuke Furushima, University of Shizuoka; and Kanae Takahashi, Department of Medical Statistics, Osaka City University Graduate School of Medicine.
Endpoint determination: Kazumasa Yamagishi, Faculty of Medicine, University of Tsukuba; Yoshihiro Kokubo, National Cerebral and Cardiovascular Center; Hiroshi Yatsuya, Fujita Health University; and Masako Kakizaki, Fujita Health University.
Data collection and management: Toshimi Sairenchi, Dokkyo Medical University School of Medicine.
Data analysis: Tomomi Yamada, Daisuke Furushima, and Kanae Takahashi, Data Coordinating Center, Department of Medical Innovation, Osaka University Hospital and Ai Noda, Department of Public Health, Juntendo University Graduate School of Medicine.
Participating municipalities (alphabetical order): Aomori city, Annaka city, Azumino city, Fuefuki city, Fujieda city, Fukuyama city, Hatsukaichi city, Higashiohmi city, Hikone city, Ibaraki city, Iida city, Imabari city, Imari city, Ishioka city, Itoshima city, Iwaki city, Izumi city, Kagoshima city, Kashima city, Karatsu city, Kitsuki city, Kinokawa city, Kitakami city, Kure city, Makinohara city, Matsumoto city, Moriya city, Nakagawa city, Nakatsu city, Ninohe city, Ohtawara city, Onomichi city, Sado city, Sakai city, Shizuoka city, Takasaki city, Takarazuka city, Tamba city, Tanabe city, Toride city, Tottori city, Takatsuki city, Yokote city.
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Figure 1.
The cumulative proportions of clinic visits for participants according to health counselor’s profession.
Figure 1.
The cumulative proportions of clinic visits for participants according to health counselor’s profession.
Table 1.
Characteristics of the participants and counselors according to the counselors’ profession.
Table 1.
Characteristics of the participants and counselors according to the counselors’ profession.
| Profession | Public Health Nurse | Clinical Nurse | Nutritionist | |||
|---|---|---|---|---|---|---|
| Characteristics of participants | ||||||
| Number of participants | 6219 | 596 | 892 | |||
| Age, years, mean ± SD | 63.1 | ±8.5 | 63.8 | ±8.2 | 64.4 | ±7.9 |
| Men, n (%) | 4139 | (66.6) | 352 | (59.1) | 583 | (65.4) |
| Grade II or higher hypertension, n (%) | 3619 | (58.2) | 338 | (56.7) | 520 | (58.3) |
| Diabetes mellitus, n (%) | 1184 | (19.0) | 119 | (20.0) | 161 | (18.1) |
| Dyslipidemia among men, n (%) | 1410 | (34.3) | 107 | (30.6) | 220 | (38.1) |
| Proteinuria, n (%) | 606 | (9.8) | 91 | (15.4) | 92 | (10.3) |
| Characteristics of counselors | ||||||
| Women, n (%) | 6142 | (98.8) | 596 | (100.0) | 881 | (98.8) |
| Men, n (%) | 77 | (1.2) | 0 | (0.0) | 11 | (1.2) |
| Age, years, mean ± SD | 39.5 | ±9.6 | 51.7 | ±6.4 | 39.4 | ±9.4 |
| Years of experience in general counseling, mean ± SD | 12.2 | ±10.1 | 9.9 | ±6.6 | 6.5 | ±8.3 |
| <3, n (%) | 1511 | (24.3) | 92 | (15.4) | 456 | (51.1) |
| 3–9, n (%) | 1629 | (26.2) | 251 | (42.1) | 274 | (30.7) |
| 10–19, n (%) | 1466 | (23.6) | 224 | (37.6) | 87 | (9.8) |
| ≥20, n (%) | 1611 | (25.9) | 29 | (4.9) | 75 | (8.4) |
| Years of experience for lifestyle-related disease counseling, mean ± SD | 4.3 | ±5.3 | 8.7 | ±6.1 | 3.4 | ±3.6 |
| <3, n (%) | 3418 | (55.0) | 111 | (18.6) | 503 | (56.4) |
| 3–5, n (%) | 1493 | (24.0) | 87 | (14.6) | 311 | (34.9) |
| ≥6, n (%) | 1303 | (21.0) | 398 | (66.8) | 78 | (8.7) |
| Counseling mode, n (%) | ||||||
| Home visit | 3375 | (54.3) | 418 | (70.1) | 402 | (45.1) |
| Face-to-face in a public place | 1694 | (27.2) | 33 | (5.5) | 281 | (31.5) |
| Telephone | 307 | (4.9) | 33 | (5.5) | 36 | (4.0) |
| Incomplete | 845 | (13.6) | 112 | (18.8) | 173 | (19.4) |
| Initial timing, n (%) | ||||||
| ≤45 days | 2489 | (40.0) | 42 | (7.1) | 287 | (32.2) |
| 46–90 days | 1688 | (27.1) | 109 | (18.3) | 257 | (28.8) |
| ≥91 days | 1335 | (21.5) | 337 | (56.5) | 189 | (21.2) |
| Incomplete | 707 | (11.4) | 108 | (18.1) | 159 | (17.8) |
| Number of counseling sessions, n (%) | ||||||
| 1 | 2566 | (41.3) | 250 | (42.0) | 332 | (37.2) |
| 2 | 1753 | (28.2) | 205 | (34.4) | 223 | (25.0) |
| 3 | 1250 | (20.1) | 47 | (7.9) | 182 | (20.4) |
| Incomplete | 650 | (10.5) | 94 | (15.8) | 155 | (17.4) |
SD, standard deviation.
Table 2.
Characteristics the participants and counselors according to the age of the counselors.
| Ages of Health Counselors, Years | 20–29 | 30–39 | 40–49 | ≥50 | ||||
|---|---|---|---|---|---|---|---|---|
| Characteristics participants | ||||||||
| Number of participants | 1336 | 2385 | 2327 | 1643 | ||||
| Age, years, mean ± SD | 63.3 | ±8.2 | 63.6 | ±8.3 | 63.1 | ±8.5 | 63.1 | ±8.5 |
| Men, n (%) | 873 | (65.3) | 1563 | (65.5) | 1553 | (66.7) | 1077 | (65.6) |
| Grade II or higher hypertension, n (%) | 788 | (58.9) | 1391 | (58.3) | 1346 | (57.8) | 942 | (57.3) |
| Diabetes mellitus, n (%) | 239 | (17.9) | 450 | (18.9) | 457 | (19.7) | 314 | (19.1) |
| Dyslipidemia among men, (%) | 310 | (35.6) | 533 | (34.4) | 531 | (34.5) | 363 | (33.9) |
| Proteinuria, n (%) | 143 | (10.7) | 241 | (10.1) | 215 | (9.3) | 184 | (11.2) |
| Characteristics of counselors | ||||||||
| Women, n (%) | 1321 | (98.9) | 2335 | (97.9) | 2315 | (99.5) | 1632 | (99.3) |
| Profession | ||||||||
| Public health, n (%) | 1171 | (87.7) | 2021 | (84.7) | 1996 | (85.8) | 1031 | (62.8) |
| Clinical nurse, n (%) | 0 | (0.0) | 37 | (1.6) | 157 | (6.8) | 386 | (23.5) |
| Nutritionist, n (%) | 165 | (12.3) | 327 | (13.7) | 174 | (7.5) | 226 | (13.8) |
| Years of experience in general counseling, mean ± SD | 2.9 | ±2.1 | 7.5 | ±4.8 | 14.9 | ±9.0 | 18.9 | ±12.1 |
| <3, n (%) | 791 | (59.2) | 561 | (23.5) | 432 | (18.6) | 275 | (16.8) |
| 3–9, n (%) | 545 | (40.8) | 1055 | (44.2) | 310 | (13.3) | 244 | (14.9) |
| 10–19, n (%) | 0 | (0.0) | 769 | (32.2) | 695 | (29.9) | 297 | (18.1) |
| ≥20, n (%) | 0 | (0.0) | 0 | (0.0) | 890 | (38.3) | 825 | (50.3) |
| Years of experience for lifestyle-related disease counseling, mean ± SD | 2.1 | ±1.5 | 3.7 | ±3.2 | 4.9 | ±5.6 | 7.1 | ±7.8 |
| <3, n (%) | 981 | (73.7) | 1285 | (53.9) | 1092 | (47.0) | 674 | (41.0) |
| 3–5, n (%) | 326 | (24.5) | 647 | (27.1) | 652 | (28.0) | 266 | (16.2) |
| ≥6, n (%) | 25 | (1.9) | 453 | (19.0) | 582 | (25.0) | 703 | (42.8) |
| Counseling mode, n (%) | ||||||||
| Home visit | 641 | (48.0) | 1144 | (48.0) | 1411 | (60.6) | 988 | (60.1) |
| Face-to-face in a public place | 421 | (31.5) | 679 | (28.5) | 513 | (22.1) | 394 | (24.0) |
| Telephone | 78 | (5.8) | 133 | (5.6) | 90 | (3.9) | 72 | (4.4) |
| Incomplete | 196 | (14.7) | 429 | (18.0) | 313 | (13.5) | 189 | (11.5) |
| Initial timing, n (%) | ||||||||
| ≤45 days | 474 | (35.5) | 840 | (35.2) | 974 | (41.9) | 529 | (32.2) |
| 46–90 days | 416 | (31.1) | 672 | (28.2) | 542 | (23.3) | 420 | (25.6) |
| ≥91 days | 278 | (20.8) | 484 | (20.3) | 550 | (23.6) | 541 | (32.9) |
| Incomplete | 168 | (12.6) | 389 | (16.3) | 261 | (11.2) | 153 | (9.3) |
| Number of counseling sessions, n (%) | ||||||||
| 1 | 556 | (41.6) | 1024 | (42.9) | 979 | (42.1) | 583 | (35.5) |
| 2 | 323 | (24.2) | 603 | (25.3) | 714 | (30.7) | 534 | (32.5) |
| 3 | 289 | (21.6) | 404 | (16.9) | 400 | (17.2) | 386 | (23.5) |
| Incomplete | 168 | (12.6) | 354 | (14.8) | 234 | (10.1) | 140 | (8.5) |
SD, standard deviation.
Table 3.
Characteristics of the participants and counselors according to the experience in general counseling.
Table 3.
Characteristics of the participants and counselors according to the experience in general counseling.
| Years of Experience | <3 | 3–9 | 10–19 | ≥20 | ||||
|---|---|---|---|---|---|---|---|---|
| Characteristics of participants | ||||||||
| Number of participants | 2059 | 2154 | 1777 | 1715 | ||||
| Age, years, mean ± SD | 64.1 | ±8.1 | 63.3 | ±8.5 | 63.3 | ±8.2 | 62.4 | ±8.7 |
| Men, n (%) | 1331 | (64.6) | 1431 | (66.4) | 1167 | (65.7) | 1144 | (66.7) |
| Grade II or higher hypertension, n (%) | 1237 | (60.1) | 1225 | (56.9) | 1002 | (56.4) | 1012 | (59.0) |
| Diabetes mellitus, n (%) | 367 | (17.8) | 394 | (18.3) | 396 | (22.3) | 307 | (17.9) |
| Dyslipidemia among men, n (%) | 463 | (34.9) | 520 | (36.5) | 368 | (31.7) | 385 | (34.0) |
| Proteinuria, n (%) | 199 | (9.7) | 236 | (11.0) | 197 | (11.1) | 157 | (9.2) |
| Characteristics of counselors | ||||||||
| Women, n (%) | 2005 | (97.4) | 2154 | (100.0) | 1743 | (98.1) | 1715 | (100.0) |
| Profession | ||||||||
| Public health, n (%) | 1511 | (73.4) | 1629 | (75.6) | 1466 | (82.5) | 1611 | (93.9) |
| Clinical nurse, n (%) | 92 | (4.5) | 251 | (11.7) | 224 | (12.6) | 29 | (1.7) |
| Nutritionist, n (%) | 456 | (22.2) | 274 | (12.7) | 87 | (4.9) | 75 | (4.4) |
| Years of experience for lifestyle-related disease counseling, mean ± SD | 1.3 | ±0.8 | 4.5 | ±2.3 | 6.1 | ±5.0 | 6.9 | ±8.6 |
| <3, n (%) | 2050 | (99.8) | 559 | (26.0) | 674 | (38.0) | 747 | (43.6) |
| 3–5, n (%) | 5 | (0.2) | 1021 | (47.4) | 416 | (23.4) | 449 | (26.2) |
| ≥6, n (%) | 0 | (0.0) | 574 | (26.7) | 686 | (38.6) | 519 | (30.3) |
| Counseling mode, n (%) | ||||||||
| Home visit | 1045 | (50.8) | 1110 | (51.5) | 1019 | (57.3) | 1021 | (59.5) |
| Face-to-face in a public place | 510 | (24.8) | 539 | (25.0) | 468 | (26.3) | 490 | (28.6) |
| Telephone | 120 | (5.8) | 142 | (6.6) | 53 | (3.0) | 59 | (3.4) |
| Incomplete | 384 | (18.7) | 363 | (16.9) | 237 | (13.3) | 145 | (8.5) |
| Initial timing, n (%) | ||||||||
| ≤45 days | 620 | (30.1) | 609 | (28.3) | 724 | (40.7) | 865 | (50.4) |
| 46–90 days | 574 | (27.9) | 613 | (28.5) | 418 | (23.5) | 449 | (26.2) |
| ≥91 days | 538 | (26.1) | 602 | (28.0) | 427 | (24.0) | 293 | (17.1) |
| Incomplete | 327 | (15.9) | 330 | (15.3) | 208 | (11.7) | 108 | (6.3) |
| Number of counseling sessions, n (%) | ||||||||
| 1 | 829 | (40.3) | 991 | (46.0) | 638 | (35.9) | 689 | (40.2) |
| 2 | 554 | (26.9) | 554 | (25.7) | 561 | (31.6) | 512 | (29.9) |
| 3 | 352 | (17.1) | 317 | (14.7) | 393 | (22.1) | 417 | (24.3) |
| Incomplete | 324 | (15.7) | 292 | (13.6) | 185 | (10.4) | 97 | (5.7) |
SD, standard deviation.
Table 4.
Cumulative proportions of clinic visits and probability ratios (95% confidence intervals) according to the counselors’ profession, age of counselors, years of experience for general counseling, and years of experience for lifestyle-related counseling.
Table 4.
Cumulative proportions of clinic visits and probability ratios (95% confidence intervals) according to the counselors’ profession, age of counselors, years of experience for general counseling, and years of experience for lifestyle-related counseling.
| Profession | Public Health Nurse | Clinical Nurse | Nutritionist | p-Value | |||||
|---|---|---|---|---|---|---|---|---|---|
| No. at risk | 6219 | 596 | 892 | ||||||
| No. of clinic visits | 3439 | 302 | 438 | ||||||
| Cumulative proportion of clinic visits (95% CI) | |||||||||
| 3 months | 37.8 | (36.6–39.0) | 29.5 | (26.0–33.4) | 31.9 | (28.9–35.0) | <0.001 | ||
| 6 months | 50.9 | (49.7–52.2) | 45.1 | (41.1–49.3) | 43.1 | (39.9–46.5) | <0.001 | ||
| 12 months | 59.8 | (58.4–61.1) | 56.4 | (52.0–60.9) | 53.3 | (49.8–56.9) | <0.001 | ||
| Probability ratio (95% Cl) | 1.22 | (1.11–1.35) | 1.04 | (0.90–1.20) | 1.00 | ||||
| Multivariable probability ratio (95% Cl) | |||||||||
| Model 1 a | 1.18 | (1.07–1.31) | 0.99 | (0.85–1.16) | 1.00 | ||||
| Model 2 b | 1.16 | (1.05–1.29) | 1.12 | (0.95–1.31) | 1.00 | ||||
| Ages of counselors | 20–29 | 30–39 | 40–49 | ≥50 | p-value | ||||
| No. at risk | 1336 | 2385 | 2327 | 1643 | |||||
| No. of clinic visits | 739 | 1230 | 1290 | 912 | |||||
| Cumulative proportion of clinic visits (95% CI) | |||||||||
| 3 months | 37.1 | (34.6–39.8) | 34.5 | (32.7–36.5) | 38.2 | (36.2–40.2) | 36.3 | (34.1–38.7) | 0.005 |
| 6 months | 49.8 | (47.1–52.6) | 47.5 | (45.5–49.6) | 50.9 | (48.9–53.0) | 50.6 | (48.1–53.1) | <0.001 |
| 12 months | 60.6 | (57.7–63.5) | 56.4 | (54.2–58.6) | 60.0 | (57.8–62.1) | 58.9 | (56.4–61.5) | <0.001 |
| Probability ratio (95% CI) | 1.00 | 0.91 | (0.83–1.00) | 1.01 | (0.92–1.11) | 0.97 | (0.88–1.07) | ||
| Multivariable probability ratio (95% Cl) | |||||||||
| Model 1 a | 1.00 | 0.87 | (0.79–0.96) | 0.89 | (0.80–0.99) | 0.86 | (0.76–0.98) | ||
| Model 2 b | 1.00 | 0.90 | (0.82–0.99) | 0.91 | (0.82–1.02) | 0.88 | (0.77–1.00) | ||
| Years of experience for general counseling | <3 | 3–9 | 10–19 | ≥20 | p-value | ||||
| No at risk | 2059 | 2154 | 1777 | 1715 | |||||
| No. of clinic visits | 1064 | 1106 | 1007 | 1002 | |||||
| Cumulative proportion of clinic visits (95% CI) | |||||||||
| 3 months | 33.2 | (31.2–35.3) | 33.9 | (31.9–35.9) | 38.3 | (36.0–40.6) | 41.6 | (39.3–44.0) | <0.001 |
| 6 months | 46.6 | (44.4–48.8) | 47.2 | (45.0–49.4) | 52.0 | (49.6–54.4) | 53.7 | (51.3–56.1) | <0.001 |
| 12 months | 57.0 | (54.6–59.4) | 56.0 | (53.8–58.4) | 60.9 | (58.4–63.3) | 62.1 | (59.6–64.6) | <0.001 |
| Probability ratio (95% CI) | 1.00 | 0.99 | (0.91–1.08) | 1.13 | (1.04–1.23) | 1.20 | (1.10–1.31) | ||
| Multivariable probability ratio (95% Cl) | |||||||||
| Model 1 a | 1.00 | 0.97 | (0.89–1.06) | 1.09 | (0.99–1.20) | 1.21 | (1.08–1.35) | ||
| Model 2 b | 1.00 | 0.97 | (0.89–1.06) | 1.02 | (0.92–1.12) | 1.07 | (0.96–1.21) | ||
| Years of experience for lifestyle-related disease counseling | <3 | 3–5 | ≥6 | p-value | |||||
| No. at risk | 4032 | 1891 | 1779 | ||||||
| No. of clinic visits | 2198 | 1020 | 958 | ||||||
| Cumulative proportion of clinic visits (95% CI) | |||||||||
| 3 months | 36.1 | (34.6–37.6) | 37.1 | (34.9–39.3) | 36.5 | (34.3–38.8) | 0.037 | ||
| 6 months | 49.4 | (47.9–51.0) | 49.5 | (47.2–51.8) | 50.0 | (47.6–52.4) | <0.001 | ||
| 12 months | 59.0 | (57.3–60.6) | 58.4 | (56.0–60.8) | 58.6 | (56.1–61.2) | <0.001 | ||
| Probability ratio (95% CI) | 1.00 | 1.00 | (0.93–1.08) | 0.99 | (0.92–1.07) | ||||
| Multivariable probability ratio (95% Cl) | |||||||||
| Model 1 a | 1.00 | 0.98 | (0.91–1.06) | 0.96 | (0.88–1.04) | ||||
| Model 2 b | 1.00 | 0.98 | (0.91–1.06) | 0.95 | (0.88–1.04) | ||||
a Adjusted for participant’s age, sex, smoking status, drinking status, and risk factors, and adjusted mutually for the other exposure variables such as profession, age of counselors, years of experience for general counseling, and years of experience for lifestyle-related disease counseling. b Adjusted further for the initial timing, the mode, and the number of counseling.
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Noguchi, M.; Kinuta, M.; Sairenchi, T.; Yamakawa, M.; Koide, K.; Katsura, S.; Matsuo, K.; Omote, S.; Imano, H.; Nishizawa, H.; et al. Relationship between Health Counselor Characteristics and Counseling Impact on Individuals at High-Risk for Lifestyle-Related Disease: Sub-Analysis of the J-HARP Cluster-Randomized Controlled Trial. Int. J. Environ. Res. Public Health 2022, 19, 6375. https://doi.org/10.3390/ijerph19116375
AMA Style
Noguchi M, Kinuta M, Sairenchi T, Yamakawa M, Koide K, Katsura S, Matsuo K, Omote S, Imano H, Nishizawa H, et al. Relationship between Health Counselor Characteristics and Counseling Impact on Individuals at High-Risk for Lifestyle-Related Disease: Sub-Analysis of the J-HARP Cluster-Randomized Controlled Trial. International Journal of Environmental Research and Public Health. 2022; 19(11):6375. https://doi.org/10.3390/ijerph19116375
Chicago/Turabian StyleNoguchi, Midori, Minako Kinuta, Toshimi Sairenchi, Miyae Yamakawa, Keiko Koide, Shoko Katsura, Kazue Matsuo, Shizuko Omote, Hironori Imano, Hitoshi Nishizawa, and et al. 2022. "Relationship between Health Counselor Characteristics and Counseling Impact on Individuals at High-Risk for Lifestyle-Related Disease: Sub-Analysis of the J-HARP Cluster-Randomized Controlled Trial" International Journal of Environmental Research and Public Health 19, no. 11: 6375. https://doi.org/10.3390/ijerph19116375
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