| girls | boys | ||
---|---|---|---|---|
Characteristics | intervention group (n = 248) | control group (n = 188) | intervention group n = (213) | control group (n = 205) |
mean (sd) age, y | 12.6 (0.4) | 12.7 (0.5) | 12.7 (0.5) | 12.8 (0.5) |
ethnicity, No. non western (%) | 29 (12) | 21 (11) | 25 (12) | 34 (17) |
mean (sd) BMI, kg/m 2 | 19.0 (3.0) | 19.5 (3.4) | 19.0 (2.6) | 19.3 (2.9) |
overweight, No. (%) a | 35 (14) | 33 (18) | 21 (10)* | 62 (15) |
obese, No. (%) a | 8 (3) | 7 (4) | 4 (2) | 8 (2) |