Model 1 | Model 2 | Model 3 | Model 4 | |||||
---|---|---|---|---|---|---|---|---|
Variables | OR | 95% CI | OR | 95% CI | OR | 95% CI | OR | 95% CI |
BED | ||||||||
No | Ref. | Ref. | Ref. | Ref. | ||||
Yes | 1.456** | 1.163–1.823 | 1.537** | 1.223–1.931 | 1.795** | 1.410–2.286 | 1.800** | 1.414–2.292 |
Age (in years) | ||||||||
≤ 29 | Ref. | Ref. | Ref. | |||||
30–39 | 0.904 | .685–1.193 | 0.780 | 0.581–1.047 | 0.785 | 0.585–1.055 | ||
≥ 40 | 0.308** | 0.176–0.536 | 0.359** | 0.195–0.659 | 0.372** | 0.200–0.690 | ||
Level of education | ||||||||
3-year college | Ref. | Ref. | Ref. | |||||
4-year college | 1.096 | 0.857–1.401 | 1.122 | 0.866–1.454 | 1.130 | 0.872–1.464 | ||
Master or higher | 1.251 | 0.686–2.279 | 1.321 | 0.700–2.496 | 1.320 | 0.699–2.494 | ||
Annual income | ||||||||
< $20,000 | Ref. | Ref. | Ref. | |||||
$20,000–29,999 | 1.140 | 0.618–2.103 | 0.798 | 0.412–1.544 | 0.800 | 0.413–1.549 | ||
$30,000–39,999 | 1.378 | 0.775–2.448 | 0.913 | 0.491–1.699 | 0.916 | 0.492–1.706 | ||
$40,000–49,999 | 1.332 | 0.733–2.419 | 0.860 | 0.451–1.639 | 0.873 | 0.457–1.666 | ||
≥ $50,000 | 0.965 | 0.361–2.577 | 0.546 | 0.194–1.538 | 0.556 | 0.197–1.569 | ||
Marital status | ||||||||
Single | Ref. | Ref. | Ref. | |||||
Married | 1.691** | 1.217–2.351 | 1.393 | 0.983–1.974 | 1.371 | 0.964–1.951 | ||
Alcohol consumption | ||||||||
Never | Ref. | Ref. | ||||||
Occasionally | 0.759 | 0.543–1.062 | 0.759 | 0.543–1.062 | ||||
Frequently | 0.572* | 0.365–0.897 | 0.565* | 0.360–0.887 | ||||
BMI, kg/m2 | ||||||||
Normal (18.5–22.9) | Ref. | Ref. | ||||||
Underweight (< 18.5) | 1.356 | 0.910–2.019 | 1.354 | 0.909–2.018 | ||||
Overweight(≥ 23) | 1.087 | 0.821–1.440 | 1.084 | 0.818–1.435 | ||||
Self-rated health | ||||||||
Poor | Ref. | Ref. | ||||||
Fair | 0.457** | 0.327–0.639 | 0.454** | 0.325–0.635 | ||||
Good | 0.317** | 0.215–0.468 | 0.317** | 0.214–0.467 | ||||
Sleep (quartile) | ||||||||
1 (least problem) | Ref. | Ref. | ||||||
2 | 2.821** | 1.852–4.295 | 2.783** | 1.823–4.246 | ||||
3 | 5.439** | 3.511–8.425 | 5.341** | 3.438–8.299 | ||||
4 | 12.494** | 7.991–19.535 | 12.272** | 7.823–19.253 | ||||
Stress (quartile) | ||||||||
1 (least stress) | Ref. | Ref. | ||||||
2 | 2.094** | 1.493–2.937 | 2.092** | 1.492–2.934 | ||||
3 | 3.671** | 2.583–5.217 | 3.650** | 2.568–5.190 | ||||
4 | 7.346** | 4.907–10.998 | 7.310** | 4.882–10.945 | ||||
Shift work | ||||||||
No | Ref. | |||||||
Yes | 0.903 | 0.656–1.243 | ||||||
Nagelkerke R2 | 0.011** | 0.092*** | 0.421*** | 0.421*** | ||||
x2/df | 10.758/1 | 91.507/10 | 507.345/22 | 507.717/23 |