Table 3.
Odds ratio (OR) and 95% confidence intervals (CI) for poor sleep quality.
| Characteristic | Unadjusted OR (95% CI) | Age and sex adjusted OR (95% CI) | Multivariate *adjusted OR (95% CI) |
|---|---|---|---|
| Sex | |||
| Male | 1.00 (Reference) | 1.00 (Reference) | 1.00 (Reference) |
| Female | 1.42 (1.05–1.92) | 1.39 (1.03–1.89) | 1.48 (0.97–2.25) |
| Smoking status | |||
| Never | 1.00 (Reference) | 1.00 (Reference) | 1.00 (Reference) |
| Former | 1.22 (0.74–2.0) | 1.24 (0.75–2.05) | 1.08 (0.55–2.13) |
| Current Smoker | 1.34 (0.99–1.81) | 1.26 (0.93–1.71) | 0.93 (0.61–1.43) |
| Alcohol consumption | |||
| Low (0–4 drinks/m) | 1.00 (Reference) | 1.00 (Reference) | 1.00 (Reference) |
| Moderate (5–15 drinks/m) | 1.02 (0.66–1.58) | 1.07 (0.68–1.66) | 1.15 (0.71–1.87) |
| High (≥16 drinks/m) | 0.97 (0.64–1.47) | 1.06 (0.69–1.63) | 0.99 (0.61–1.60) |
| Stimulant beverage consumption | |||
| No | 1.00 (Reference) | 1.00 (Reference) | 1.00 (Reference) |
| Yes | 1.51 (1.14–2.00) | 1.52 (1.14–2.02) | 1.81 (1.21–2.73) |
| Physical activity | |||
| No | 1.00 (Reference) | 1.00 (Reference) | 1.00 (Reference) |
| Yes | 1.03 (0.77–1.39) | 1.08 (0.80–1.47) | 0.96 (0.64–1.43) |
*Multivariate includes age and all other covariates listed in the table. For alcohol, the total number of drinks per month was used and the total number of stimulant drinks was also used.