Table 5.
Multivariate logistic regression analysis showing odds ratios of sleeping ≥6 hours/night versus <6 hours/night in 9 864 men. All variables are controlled for the other variables in the table.
| Variable | Odds ratio | Confidence limits (95%) | P-value | |
|---|---|---|---|---|
| BMI change ages 20 to 40 | 1.001 | 0.983 | 1.019 | 0.909 |
| Control variables | ||||
| Age | 1.005 | 0.997 | 1.014 | 0.211 |
| Marital status (Reference: married) | ||||
| Never married | 1.116 | 0.881 | 1.414 | 0.363 |
| Separated/divorced/widowed | ||||
| 0.849 | 0.718 | 1.005 | 0.057 | |
| Education (Reference: college graduate or more education) | ||||
| Some college | 0.816 | 0.731 | 0.911 | < 0.0001 |
| High school or less | 0.780 | 0.669 | 0.909 | 0.002 |
| Ethnicity - Black vs other | 0.254 | 0.227 | 0.285 | < 0.0001 |
| Personal income (Reference: <$31,000/year) | ||||
| $31,000 - $50,000 | 1.010 | 0.889 | 1.147 | 0.883 |
| $51,000 - $75,000 | 0.927 | 0.804 | 1.070 | 0.300 |
| > $76,000 | 0.958 | 0.828 | 1.109 | 0.567 |
| TV watching | ||||
| < 2 hours/day vs more | 1.052 | 0.951 | 1.163 | 0.324 |
| Diet - Vegan/lacto-ovo vegetarian vs other | ||||
| 1.265 | 1.142 | 1.401 | < 0.0001 | |
| Physical activity | ||||
| >150 minutes/wk vs less | 1.049 | 0.937 | 1.175 | 0.406 |
| Current BMI | 0.964 | 0.952 | 0.977 | < 0.0001 |