Table 1 Baseline characteristics of the Irish COSI study sample separately by sex
All (n = 7542) | Boys (n = 3476) | Girls (n = 4066) | ||||
|---|---|---|---|---|---|---|
median | 25th–75th | median | 25th–75th | median | 25th–75th | |
Age (years) | 10.4 | 9.3–11.5 | 10.5 | 9.4–11.5 | 10.4 | 9.3–11.4 |
Weight (kg) | 36.1 | 30.9–42.9 | 36.0 | 31.1–42.0 | 36.2 | 30.8–43.7 |
Height (cm) | 142.4 | 135.9–149.5 | 142.9 | 136.5–149.4 | 141.9 | 135.4–149.5 |
WC (cm) | 62.4 | 58.3–68.2 | 62.5 | 58.8–68.0 | 62.3 | 57.9–68.4 |
BMI (kg/m2) | 17.6 | 16.2–19.8 | 17.5 | 16.1–19.3 | 17.8 | 16.2–20.2 |
n | % | n | % | n | % | |
School socioeconomic status | ||||||
Non-disadvantaged schools | 6636 | 88.0 | 3091 | 88.9 | 3545 | 87.2 |
Disadvantaged schools | 906 | 12.0 | 385 | 11.1 | 521 | 12.8 |
School location | ||||||
Urban | 6303 | 83.6 | 2888 | 83.1 | 3415 | 84.0 |
Rural | 1239 | 16.4 | 588 | 16.9 | 651 | 16.0 |