Table 5.
Relationship between lifestyle factors and distorted body image (overestimation) among girls (Japan; 2005–2009)
| Body image perception, n(%) | Adjusteda OR (95 % CI) | P-value | ||
|---|---|---|---|---|
| Correct | Overestimated | |||
| Exercise | ||||
| Daily | 343 (60.0) | 81 (52.9) | 0.87 (0.58–1.32) | 0.523 |
| Sometimes | 68 (11.9) | 28 (18.3) | 1.51 (0.87–2.62) | 0.147 |
| Never | 161 (28.1) | 44 (28.8) | 1.00 | |
| Snacking after dinner | ||||
| Yes | 276 (47.8) | 90 (58.4) | 1.53 (1.07–2.19) | 0.021 |
| No | 302 (52.2) | 64 (41.6) | 1.00 | |
| Skipping breakfast | ||||
| No | 548 (93.4) | 147 (95.5) | 1.00 | |
| Yes | 39 (6.6) | 7 (4.5) | 0.67 (0.30–1.54) | 0.347 |
| Wakeup time | ||||
| Before 6:30 | 318 (55.8) | 89 (59.7) | 1.00 | |
| 6:30–6:59 | 90 (15.8) | 25 (16.8) | 0.98 (0.60–1.63) | 0.950 |
| After 7:00 | 162 (28.4) | 35 (23.5) | 0.76 (0.49–1.17) | 0.215 |
| Bedtime | ||||
| Before 22:00 | 36 (6.7) | 8 (5.8) | 1.00 | |
| 22:00–22:59 | 262 (48.4) | 66 (47.8) | 1.12 (0.50–2.54) | 0.780 |
| After 23:00 | 243 (44.9) | 64 (46.4) | 1.15 (0.51–2.60) | 0.738 |
| Hours of sleep | ||||
| < 8 | 176 (32.8) | 49 (35.8) | 1.00 | |
| 8–9 | 288 (53.7) | 72 (52.6) | 0.92 (0.61–1.38) | 0.672 |
| 9+ | 72 (13.4) | 16 (11.7) | 0.82 (0.44–1.55) | 0.544 |
OR, odds ratio; 95 % CI, 95 % confidence interval
aAge and body mass index were adjusted in a logistic regression analysis