Table 4 Adjusted odds ratios and 95% confidence intervals for underweight in boys (Japan, 2001–2008)
From: Lifestyle factors associated with underweight among Japanese adolescents: a cross-sectional study
Lifestyle variables | Total N | Underweight n (%) | AOR (95% CI) | P value |
|---|---|---|---|---|
Exercise | ||||
Daily | 869 | 81 (9.3) | 1.00 | |
Sometimes | 77 | 6 (7.8) | 0.89 (0.37–2.15) | 0.802 |
None | 86 | 12 (14.0) | 1.73 (0.88–3.38) P for trend = 0.173 | 0.111 |
Skipping breakfast | ||||
Yes | 48 | 3 (6.3) | 0.70 (0.21–2.36) | 0.568 |
No | 984 | 96 (9.8) | 1.00 | |
Snacking after dinner | ||||
Always or often | 637 | 57 (9.0) | 0.89 (0.57–1.38) | 0.593 |
Seldom or none | 395 | 42 (10.6) | 1.00 | |
Snacking while watching television or reading books | ||||
Yes | 417 | 34 (8.2) | 0.71 (0.45–1.12) | 0.143 |
No | 615 | 65 (10.6) | 1.00 | |
Eating slowly | ||||
Yes | 196 | 35 (17.9) | 2.78 (1.77–4.39) | <0.001 |
No | 836 | 64 (7.7) | 1.00 | |