Table 1 Descriptive characteristics of study participants
N (%) participants | N (%) measured time points | ||
|---|---|---|---|
Full sample | 27,637 (100 %) | 35,360 (100 %) | |
Sex | Male | 11,199 (41 %) | 14,633 (41 %) |
Female | 16,438 (59 %) | 20,727 (59 %) | |
Age† | 2–4 years | 1044 (4 %) | 1044 (3 %) |
5–6 years | 2379 (9 %) | 2379 (7 %) | |
7–8 years | 1168 (4 %) | 1654 (5 %) | |
9–10 years | 6054 (22 %) | 6910 (20 %) | |
11–12 years | 9981 (36 %) | 11,186 (32 %) | |
13–14 years | 4706 (17 %) | 9196 (26 %) | |
15–16 years | 1747 (6 %) | 2342 (7 %) | |
17–18 years | 558 (2 %) | 649 (2 %) | |
Weight status† ‡ | Normal | 20,387 (74 %) | 26,222 (75 %) |
Overweight | 4939 (18 %) | 6238 (18 %) | |
Obese | 2048 (7 %) | 2450 (7 %) | |
Country [No. studies] | Australia [N = 2] | 2395 (9 %) | 3531 (10 %) |
Belgium [N = 1] | 257 (1 %) | 257 (1 %) | |
Brazil [N = 1] | 420 (2 %) | 420 (1 %) | |
Denmark [N = 2] | 1905 (7 %) | 2563 (7 %) | |
Estonia [N = 1] | 643 (2 %) | 643 (2 %) | |
Norway [N = 1] | 364 (1 %) | 364 (1 %) | |
Portugal [N = 1] | 1070 (4 %) | 1174 (3 %) | |
Switzerland [N = 2] | 742 (3 %) | 742 (2 %) | |
UK [N = 5] | 10,301 (37 %) | 14,424 (41 %) | |
USA [N = 4] | 9540 (35 %) | 11,242 (32 %) |