Table 1 Characteristics of adolescent girls by selected variables
Variables | Outcome | |
|---|---|---|
Age (years), Mean ± SD | 15.0 ± 1.22 | |
Education (years), Mean ± SD | 8.3 ± 1.55 | |
Age at menarche, Mean ± SD | 13.3 ± 1.33 | |
Family size(persons), Mean ± SD | 4.3 ± 1.09 | |
Body mass index (BMI) percentiles, | n | % |
≤ 5th | 286 | 53.7 % |
5th- ≤ 10th | 53 | 9.9 % |
10th- ≤25th | 42 | 7.9 % |
25th- ≤75th | 104 | 19.5 % |
75th- ≤85th | 28 | 5.3 % |
85th- | 20 | 3.8 % |
Rural and urban | ||
Urban | 144 | 27 % |
Rural | 389 | 73 % |
Geography site | ||
Northern plateau | 92 | 17 % |
Central Shaanxi | 383 | 72 % |
Southern region | 58 | 11 % |
Source of income | ||
Farming only | 153 | 28.7 % |
Farming plus others | 122 | 23.9 % |
Others | 258 | 48.4 % |