An Instrument to Measure Adherence to Weight Loss Programs: The Compliance Praxis Survey-Diet (COMPASS-Diet)
Abstract
:1. Introduction
2. Methods
2.1. The “Slim without Diet” Program
2.2. The COMPASS Survey
2.3. Assessment of Reliability and Validity of the New COMPASS Surveys
2.4. Other Measures
2.5. Participants
2.6. Statistical Methods
3. Results
Participant characteristics | No adherence rating (n = 40) | Self-adherence rating only (n = 60) | Other-adherence rating only (n = 47) | Both self and other rating (n = 106) | |
---|---|---|---|---|---|
Categorical characteristics | N (%) | N (%) | N (%) | N (%) | p |
Gender | 0.08 | ||||
Women | 36 (85.0) | 52 (86.7) | 40 (85.1) | 77 (72.6) | |
Men | 6 (15.0) | 8 (13.3) | 7 (14.9) | 29 (27.4) | |
Working status | 0.03 | ||||
Employed/self-employed | 31 (77.5) | 28 (46.6) | 23 (48.9) | 70 (66.3) | |
Retired/home duties | 6 (15.0) | 24 (40.0) | 19 (40.4) | 26 (24.5) | |
other | 3 (7.5) | 8 (13.4) | 5 (10.6) | 10 (9.4) | |
Body mass index | 0.196 | ||||
Normal <25 kg/m2 | 6 (15.0) | 3 (5.0) | 5 (10.6) | 9 (8.5) | |
Overweight (25–29.9 kg/m2) | 16 (40.0) | 16 (26.7) | 11 (23.4) | 41 (38.7) | |
Obese class I (30–34.9 kg/m2) | 13 (32.5) | 22 (36.7) | 20 (42.6) | 30 (28.3) | |
Obese class II (≥35 kg/m2) | 5 (12.5) | 19 (31.7) | 11 (23.4) | 26 (24.5) | |
Comorbidity burden | 0.61 | ||||
none | 39 (66.1) | 33 (54.1) | 29 (59.6) | 64 (60.4) | |
Continuous characteristics | |||||
Current age M(SD) | 41.7 (12.2) | 49.8 (11.5) | 50.0 (11.5) | 46.9 (11.9) | 0.003 |
Starting weight | 0.45 | ||||
Weight M(SD) | 83.2 (13.6) | 88.8 (17.6) | 87.7 (21.5) | 87.7 (17.2) | |
Starting BMI | |||||
BMI M(SD) | 30.3 (4.9) | 33.0 (5.7) | 32.2 (7.0) | 31.5 (5.1) | 0.12 |
Desired weight | 0.18 | ||||
Weight kgM(SD) | 68.4 (9.4) | 71.4 (11.3) | 70.0 (9.8) | 72.7 (11.3) | |
Weight loss achieved | <0.001 | ||||
Weight kgM(SD) | 1.4 (1.8) | 3.3 (2.5) | 3.8 (2.7) | 4.8 (3.0) | |
Relative weight loss | <0.001 | ||||
% of starting weight lost | 1.7 (2.1) | 3.7 (2.7) | 4.3 (2.7) | 5.3 (3.0) | |
COMPASS-diet (self) | 0.47 | ||||
Summary Score M(SD) | 81.6 (15.1) | 83.2 (13.3) | |||
COMPASS-diet (other) | 0.09 | ||||
Summary Score M(SD) | 78.9 (15.4) | 82.9 (11.9) | |||
General self-efficacy | |||||
Summary Score M(SD) | 32.1 (3.6) | 31.8 (3.9) | 0.64 |
Age | General self-efficacy | COMPASS-diet self | COMPASS-diet other | Desired weight at start of program | |
---|---|---|---|---|---|
Age | 1 | ||||
General self-efficacy | 0.16 * | 1 | |||
COMPASS-diet self | 0.08 | 0.31 ** | 1 | ||
COMPASS-diet other | −0.17 * | 0.04 | 0.37 ** | 1 | |
Desired weight | 0.13 | 0.15 | 0.14 | −0.01 | 1 |
Actual weight loss achieved | −0.01 | 0.07 | 0.28 ** | 0.28 ** | 0.44 ** |
Model 1 | Model 2 | |
---|---|---|
Gender | 0.37 *** | 0.39 *** |
Age | −0.15 * | −0.08 |
General self-efficacy | −0.05 | −0.04 |
COMPASS-Self | 0.31 *** | - |
COMPASS-Other | - | 0.22 * |
Total R2 | 0.23 | 0.19 |
Total Adjusted R2 | 0.21 | 0.16 |
F | 10.85 *** | 5.51 *** |
4. Discussion
Limitations of This Study
5. Conclusions
Conflicts of Interest
References
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Janda, M.; Zeidler, D.; Böhm, G.; Schoberberger, R. An Instrument to Measure Adherence to Weight Loss Programs: The Compliance Praxis Survey-Diet (COMPASS-Diet). Nutrients 2013, 5, 3828-3838. https://doi.org/10.3390/nu5103828
Janda M, Zeidler D, Böhm G, Schoberberger R. An Instrument to Measure Adherence to Weight Loss Programs: The Compliance Praxis Survey-Diet (COMPASS-Diet). Nutrients. 2013; 5(10):3828-3838. https://doi.org/10.3390/nu5103828
Chicago/Turabian StyleJanda, Monika, Doris Zeidler, Gabriela Böhm, and Rudolf Schoberberger. 2013. "An Instrument to Measure Adherence to Weight Loss Programs: The Compliance Praxis Survey-Diet (COMPASS-Diet)" Nutrients 5, no. 10: 3828-3838. https://doi.org/10.3390/nu5103828