Table 6.
Adjusted odds ratios and 95% confidence intervals for underweight in total participants (Japan, 2001–2008)
| Lifestyle variables | Total N | Underweight n (%) | AOR (95% CI) | P value |
|---|---|---|---|---|
| Exercise | ||||
| Daily | 1481 | 146 (9.9) | 1.00 | |
| Sometimes | 209 | 23 (11.0) | 1.16 (0.72–1.87) | 0.546 |
| None | 351 | 57 (16.2) | 1.59 (1.11–2.27) P for trend = 0.012 | 0.011 |
| Skipping breakfast | ||||
| Yes | 118 | 10 (8.5) | 0.69 (0.35–1.37) | 0.295 |
| No | 1923 | 216 (11.2) | 1.00 | |
| Snacking after dinner | ||||
| Always or often | 1222 | 133 (10.9) | 0.98 (0.73–1.32) | 0.903 |
| Seldom or none | 819 | 93 (11.4) | 1.00 | |
| Snacking while watching television or reading books | ||||
| Yes | 872 | 92 (10.6) | 0.86 (0.64–1.16) | 0.322 |
| No | 1169 | 134 (11.5) | 1.00 | |
| Eating slowly | ||||
| Yes | 455 | 91 (20.0) | 2.67 (1.99–3.59) | <0.001 |
| No | 1586 | 135 (8.5) | 1.00 | |
AOR adjusted odds ratio, CI confidence interval
Sex, age (years), birthweight (<2500 g or ≥2500 g), and lifestyle variables were included in the adjustment