Table 1 Demographic and clinical characteristic in adolescents stratified by different categories of body-mass index (BMI)
Underweight | Normal weight | Overweight | Obesity | |
|---|---|---|---|---|
N (%) | 145 (1.5%) | 7499 (79.8%) | 1411 (15.0%) | 341 (3.6%) |
Age, mean (SD) | 17.4 (0.8) | 17.4 (0.8)* | 17.5 (0.8) | 17.5 (0.9) |
BMI, mean (SD) | 16.0 (0.6) | 21.0 (1.9)* | 26.5 (1.4) | 32.8 (3.2) |
Gender | ||||
Girls, % (n) | 8.3% (421) | 77.1% (3915)* | 11.6% (590) | 3.0% (151) |
Boys, % (n) | 5.0% (216) | 76.7% (3348) | 14.7% (642) | 3.6% (157) |
Fathers with college education, % (n) | 28.3% (41) | 38.9% (2914)* | 31.7% (447) | 25.8% (88) |
Mothers with college education, % (n) | 23.4 (34) | 34.3% (2573)* | 25.8% (364) | 16.4% (56) |
Poorer family economy, % (n) | 12.7% (27) | 6.4% (470)* | 8.4% (116) | 15.1% (51) |
Physical activity (days/wk), % | ||||
None | 25.5% (36) | 42.4% (3053)* | 35.3% (478) | 26.5% (87) |
1-3 days | 53.9 (76) | 48.8% (3511) | 51.8% (701) | 58.5 (192) |
4 + days | 20.6% (29) | 8.7% (628) | 12.9% /(175) | 14.9% (49) |
Depression (SMFQ score), mean (SD) | 8.4 (6.4) | 5.5 (5.5)* | 6.4 (6.0) | 8.1 (7.2) |