Table 3.
Geographical differences in anthropometric profiles
| Port Elizabeth Area (n = 791) | Gauteng Area (n = 994) | p-value | |
|---|---|---|---|
| Mean (±SD) n (%) |
Mean (±SD) n(%) |
||
| Gender | |||
| Girls | 392 (49.6) | 475 (47.8) | |
| Boys | 399 (50.4) | 519 (52.2) | |
| Age (years) | 9.7 (±0.8) | 9.4 (±0.7) | < 0.001 |
| 8 year olds | 23 (2.9) | 58 (5.8) | |
| 9 year olds | 338 (42.7) | 566 (56.9) | |
| 10 year olds | 322 (40.7) | 321 (32.3) | |
| 11 year olds | 108 (13.7) | 49 (4.9) | |
| Head circumference (cm) | 52.7 (±2.1) | 45.4 (±11.2) | < 0.001 |
| Height (cm) | 132.7 (±7.1) | 132.8 (6.4) | 0.42 |
| Weight (kg) | 31.1 (±7.2) | 37.7 (±11.9) | < 0.001 |
| BMI Categories | < 0.001 | ||
| < 3rd percentile | 38 (4.8) | 27 (2.7) | |
| 3rd-15th percentile | 89 (11.3) | 68 (6.8) | |
| 15th -50th percentile | 271 (34.3) | 232 (23.3) | |
| 50th – 85th percentile | 315 (39.8) | 258 (26.0) | |
| > 95th percentile | 78 (9.7) | 409 (41.2) | |
| BMI (kg/m2) | 17.5 (±3.1) | 21.9 (±6.8) | < 0.001 |
Statistical significance set at p<0.05