The Metabolic Profiles of Metabolically Healthy Obese and Metabolically Unhealthy Obese South African Adults over 10 Years
Abstract
:1. Introduction
2. Materials and Methods
2.1. Design, Setting and Participants
2.2. Measurements
2.3. Ethical Considerations
2.4. Statistical Methods
3. Results
3.1. Baseline and Follow-Up Characteristics of the Participants
3.2. Comparison of the Metabolic Profiles of the Different Groups
4. Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
Abbreviations
BMI | body mass index |
CRP | C-reactive protein |
CVD | cardiovascular disease |
DBP | diastolic blood pressure |
HbA1c | glycated haemoglobin |
HDL | high-density lipoprotein |
HOMA-IR | homeostatic model assessment of insulin resistance |
MetS | metabolic syndrome |
MHNW | metabolically healthy normal weight |
MHO | metabolically healthy overweight/obesity |
MHOMHO | maintenance of MHO in 2005 and 2015 |
MHOMUO | MHO in 2005 and MUO in 2015 |
MUNW | metabolically unhealthy normal weight |
MUO | metabolically unhealthy overweight/obesity |
MUOMUO | MUO in 2005 and 2015 |
PAI-1act | Plasminogen activator inhibitor-1 activity |
PURE | Prospective Urban and Rural Epidemiological |
SBP | systolic blood pressure |
SD | standard deviation |
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Variables | Women (n = 642) | Men (n = 275) | ||
---|---|---|---|---|
2005 | 2015 | 2005 | 2015 | |
Age (years) | 49.3 (43.1–56.4) a | 59.2 (53.0–66.6) b | 49.8 (42.6–57.7) a | 59.7 (52.5–67.9) b |
Weight (kg) | 63.6 (53.4–78.9) a | 66.0 (53.6–81.1) b | 57.2 (50.5–66.1) a | 57.7 (50.9–67.4) a |
Height (m) | 1.57 ± 0.06 a | 1.56 ± 0.06 b | 1.67 ± 0.06 a | 1.66 ± 0.07 b |
Body mass index (kg/m2) | 25.9 (21.8–32.0) a | 27.0 (22.3–33.4) b | 20.1 (18.5–23.4) a | 20.6 (18.3–24.3) b |
Waist circumference (cm) | 80.8 (71.2–91.5) a | 91.2 (80.1–102.0) b | 75.0 (70.4–82.5) a | 78.9 (72.0–91.0) b |
Urbanisation: | ||||
Urban area | 264 (41.1%) | 264 (41.1%) | 120 (43.6%) | 120 (43.6%) |
Rural area | 378 (58.9%) | 378 (58.9%) | 155 (56.4%) | 155 (56.4%) |
Educational status: | ||||
School education | 418 (65.1%) | 418 (65.1%) | 165 (60%) | 165 (60%) |
No school education | 225 (34.9%) | 225 (34.9%) | 110 (40%) | 110 (40%) |
Smoking: | ||||
Smoker | 287 (44.7%) | 210 (32.7%) b | 153 (55.6%) a | 136 (49.4%) b |
Non-smoking | 355 (55.3%) | 432 (67.3%) | 122 (44.4%) | 139 (50.6%) |
Baseline Variables | MHNW 2005 and 2015; n = 345 | MHO 2005 and 2015; n = 86 | MUO 2005 And 2015; n = 145 | MHO 2005 to MUO 2015; n = 91 | p |
---|---|---|---|---|---|
Male/female ratio | 182/170 (52%/48%) | 14/72 (16%/84%) | 13/132 (9%/91%) | 13/78 (14%/86%) | |
Age (years) | 47.5 (42.1, 54.6) a | 47.9 (42.4, 54.4) a | 52.9 (45.6, 58.1) b | 47.4 (40.6, 53.7) a | 0.027 |
Body mass index (kg/m2) | 19.5 (18.0, 21.7) a | 33.0 (26.4, 34.1) b | 32.5 (28.6, 37.1) b | 30.0 (27.0, 32.6) b | <0.0001 |
Waist circumference (cm) | 70.8 (66.2, 74.9) a | 85.4 (78.9, 91.9) b | 94.6 (88.6, 101.4) c | 89.4 (83.3, 97.8) b | <0.0001 |
Alcohol intake (g) | 2.78 (0, 22.9) a | 0 (0, 0.97) b | 0 (0, 6.12) a | 0 (0, 0) b | <0.0001 |
HIV status | 48 (13.6%) | 6 (7.0%) | 6 (4.1%) | 4 (4.4%) | 0.01 |
Smoking | 212 (60.2%) | 87 (38.4%) | 61 (42.1%) | 30 (33.0%) | <0.0001 |
Variables after 10 years | |||||
Variable | MHNW 2005 and 2015; n = 345 | MHO 2005 and 2015; n = 86 | MUO 2005 and 2015; n = 145 | MHO 2005 to MUO 2015; n = 91 | p |
Body mass index (kg/m2) | 19.8 (18.0, 22.1) a | 32.7 (28.2, 35.6) b | 33.1 (29.1, 37.6) b | 32.0 (29.2, 35.8) b | <0.0001 |
Waist circumference (cm) | 75.2 (70.0, 80.0) a | 97.7 (91.6, 103.0) b | 102.5 (97.3, 110.6) c | 101.0 (94.4, 110.0) c | <0.0001 |
Systolic blood pressure (mm Hg) | 127 (112, 147) a | 121 (107, 140) b | 133 (122, 147) c | 133 (122, 150) c | <0.0001 |
Diastolic blood pressure (mmHg) | 82 (74, 94) a | 80 (72, 91) a | 86 (78, 95) b | 91 (83, 96) c | <0.0001 |
Glycosylated haemoglobin (%) | 5.50 (5.2, 5.7) a | 5.70 (5.5, 6.0) a | 6.0 (5.7, 6.7) b | 6.20 (5.7, 6.9) c | <0.0001 |
Total cholesterol (mmol/L) | 4.29 (3.64, 5.04) a | 4.68 (4.05, 5.50) b | 4.93 (4.22, 5.60) c | 4.53 (3.85, 5.48) a,b | <0.0001 |
HDL cholesterol (mmol/L) | 1.52 (1.20, 1.84) a | 1.42 (1.11, 1.68) b | 1.02 (0.81, 1.18) c | 1.07 (0.93, 1.20) c | <0.0001 |
Serum triglycerides (mmol/L) | 0.93 (0.71, 1.17) a | 1.04 (0.86, 1.29) a | 1.46 (1.1, 2.14) b | 1.28 (0.95, 2.04) c | <0.0001 |
Fasting plasma glucose (mmol/L) | 4.85 (4.46, 5.26) a | 4.98 (4.70, 5.28) a | 5.76 (5.08, 6.89) b | 5.39 (4.94, 6.06) c | <0.0001 |
Fasting plasma insulin (mU/mL) | 5.35 (3.10, 10.3) a | 7.34 (4.8, 10.5) a,b | 9.91 (6.07, 17.2) c | 10.2 (6.06, 15.0) b,c | <0.0001 |
HOMA-Insulin resistance | 1.16 (0.66, 2.2) a | 1.55 (1.03, 2.19) b | 2.85 (1.46, 4.92) b,c | 2.34 (1.29, 3.74) b | <0.0001 |
C-reactive protein (mg/L) | 2.2 (0.92, 5.52) a | 6.21 (2.35, 9.87) b | 5.67 (2.91, 9.74) b | 4.89 (2.23, 9.62) b | <0.0001 |
Total fibrinogen (g/L) | 3.52 (3.11, 4.12) a | 4.14 (3.65, 4.51) b | 4.09 (3.52, 4.60) b | 4.06 (3.66, 4.57) b | <0.0001 |
Plasminogen activator inhibitor-1act (IU/mL) | 0.85 (0.00, 4.39) a | 2.76 (0.00, 6.19) b | 6.34 (1.17, 12.3) c | 4.30 (0.74, 12.1) c | <0.0001 |
HIV status | 89 (23.3%) | 32 (14.0%) | 2 (8.0%) | 4 (4.9%) | 0.001 |
Smoking | 189 (51.8%) | 57 (25.8%) | 7 (28.0%) | 16 (21.6%) | <0.0001 |
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Kruger, H.S.; De Lange-Loots, Z.; Kruger, I.M.; Pieters, M. The Metabolic Profiles of Metabolically Healthy Obese and Metabolically Unhealthy Obese South African Adults over 10 Years. Int. J. Environ. Res. Public Health 2022, 19, 5061. https://doi.org/10.3390/ijerph19095061
Kruger HS, De Lange-Loots Z, Kruger IM, Pieters M. The Metabolic Profiles of Metabolically Healthy Obese and Metabolically Unhealthy Obese South African Adults over 10 Years. International Journal of Environmental Research and Public Health. 2022; 19(9):5061. https://doi.org/10.3390/ijerph19095061
Chicago/Turabian StyleKruger, Herculina Salome, Zelda De Lange-Loots, Iolanthé Marike Kruger, and Marlien Pieters. 2022. "The Metabolic Profiles of Metabolically Healthy Obese and Metabolically Unhealthy Obese South African Adults over 10 Years" International Journal of Environmental Research and Public Health 19, no. 9: 5061. https://doi.org/10.3390/ijerph19095061