Table 2.
Characteristics of study population.
| Overall (N = 54,580) |
Boys (N = 28,849) |
Girls (N = 25,731) |
|
|---|---|---|---|
| Age (years) | |||
| 3–5 | 5896 (10.8) | 3410 (11.8) | 2486 (9.7) |
| 6–8 | 9025 (16.5) | 4887 (16.9) | 4138 (16.1) |
| 9–11 | 7010 (12.8) | 3842 (13.3) | 3168 (12.3) |
| 12–15 | 11,980 (21.9) | 6258 (21.7) | 5722 (22.2) |
| 16–19 | 20,669 (37.9) | 10,452 (36.2) | 10,217 (39.7) |
| Weight statusa | |||
| Non-overweight | 36,433 (77.9) | 17,720 (73.1) | 18,713 (83.0) |
| Overweight | 7161 (15.3) | 4276 (17.7) | 2885 (12.8) |
| Obesity | 2639 (5.6) | 1831 (7.6) | 808 (3.6) |
| Extreme obesity | 539 (1.2) | 399 (1.6) | 140 (0.6) |
| Region | |||
| South | 12,326 (22.6) | 7667 (26.6) | 4659 (18.1) |
| North | 42,254 (77.4) | 21,182 (73.4) | 21,072 (81.9) |
| Survey year | |||
| 2009–2015 | 10,297 (18.9) | 5676 (19.7) | 4621 (18.0) |
| 2016–2019 | 44,283 (81.1) | 23,173 (80.3) | 21,110 (82.0) |
aThe numbers of subjects with missing values were 7808 for height or weight.