Table 3. Markers and prevalence of obesity by age.
| Birth | Year 1 | Year 2 | Year 3 | Year 5 | |
|---|---|---|---|---|---|
| Skinfold thickness (mm) | 10.4 (2.5) | 19.0 (4.4) | 18.5 (4.4) | 18.7 (4.5) | 18.7 (5.9) |
| Percent body fat (PBF)* | 9.9 (2.6) | 18.1 (3.7) | 17.6 (3.7) | 17.7 (3.8) | 17.6 (4.6) |
| No. (%) with PBF ≥ 90th percentile | 75 (11.2) | 71 (10.5) | 65 (10.2) | 61 (10.4) | 52 (10.3) |
| Mean (SD) BF in obese subgroup | 14.5 (1.9) | 24.8 (1.5) | 24.5 (1.9) | 24.6 (2.0) | 26.5 (3.4) |
| Mean WC (SD) cm | 29.9 (2.4) | 44.5 (3.1) | 47.4 (3.1) | 48.3 (3.1) | 51.7 (4.1) |
| No. (%) ≥ 90 percentile** | NA | NA | NA | 43 (7.2) | 59 (11.5) |
| Mean (SD) WC in obese subgroup | 54.9 (1.8) | 59.5 (4.4) | |||
| Mean BMI | NA† | NA† | NA† | 16.2 (1.2) | 15.9 (1.6) |
| Mean percentile for BMI for age | NA† | NA† | NA† | 56.4 (27.6) | 57.8 (27.7) |
| No. (%) for obesity status | NA† | NA† | NA† | ||
| Healthy | 485 (81.1) | 407 (79.3) | |||
| Overweight | 77 (12.9) | 69 (13.5) | |||
| Class I obesity | 36 (6.0) | 31 (6.0) | |||
| Class II obesity | 6 (1.2) | ||||
| Mean WHtR (SD) | 0.595 (0.042) | 0.586 (0.038) | 0.538 (0.033) | 0.503 (0.030) | 0.468 (0.034) |
| Proportion WHtR ≥ 0.50 | 99.4% (690/694) | 99.0% (668/675) | 90.0% (576/640) | 51.5% (304/590) | 14.4% (74/512) |
| Mean (SD) WHtR in subgroup | 0.596 (0.041) | 0.587 (0.037) | 0.544 (0.028) | 0.526 (0.022) | 0.528 (0.032) |