Table 2.
Prevalence of adiposity and cardio-metabolic comorbidities by gender, population group and overall
| Variables, n (%) | Overall | Gender | Population groups | P for population group* gender* | |||||
|---|---|---|---|---|---|---|---|---|---|
| Boys | Girls | P-value | Coloured | Black | White | P-value | |||
| N, % | 1559 (100) | 619 (39.7) | 940 (60.3) | 877 (56.3) | 537 (34.5) | 145 (9.3) | |||
| Body Mass Index categories | <0.0001 | <0.0001 | <0.0001 | ||||||
| Normal weight | 1202 (77.1) | 533 (86.1) | 669 (71.2) | 699 (79.7) | 398 (74.1) | 105 (72.4) | |||
| Overweight | 243 (15.6) | 58 (9.4) | 185 (19.7) | 112 (12.8) | 101 (18.8) | 30 (20.7) | |||
| Obesity | 114 (7.3) | 28 (4.5) | 86 (9.1) | 66 (7.5) | 38 (7.1) | 10 (6.9) | |||
| Hypertension | 38 (2.6) | 17 (2.9) | 21 (2.4) | 0.748 | 17 (2.0) | 18 (3.6) | 3 (2.2) | 0.038 | 0.072 |
| Dyslipidaemia | |||||||||
| Triglycerides >1.5 mmol/L | 78 (5.0) | 26 (4.2) | 52 (5.5) | 0.238 | 42 (4.8) | 29 (5.4) | 7 (4.8) | 0.873 | 0.040 |
| Total cholesterol >5 mmol/L | 102 (6.5) | 28 (4.5) | 74 (7.9) | 0.009 | 61 (7.0) | 27 (5.0) | 14 (9.7) | 0.102 | 0.034 |
| HDL-C < 1.2 mmol/L | 1047 (67.2) | 459 (74.2) | 588 (62.6) | <0.0001 | 593 (67.6) | 339 (63.1) | 115 (79.3) | 0.001 | <0.0001 |
*P-value for the interaction of population group and gender; Overweight and obesity: Gender- and age-specific BMI cut-off points corresponding to 25 and 30 kg/m2, respectively, at the age of 18 years (17); Hypertension: systolic and/or diastolic blood pressure equal to the 95th percentile for gender, age and height (16)