Table 2.
Multivariate logistic regression of the association between sleep apnea and independent variables of interest.
| Predictors | Diagnosed sleep apnea OR (95% conf. interval) | p value |
|---|---|---|
| Age | ||
| 18–44 | 1.00 | — |
| 45–64 | 1.94 (1.15–3.26) | 0.013 |
| ≥65 | 1.94 (1.08–3.51) | 0.027 |
| Ethnicity | ||
| White | 1.00 | — |
| Others (includes Aboriginals) | 0.76 (0.37–1.55) | 0.453 |
| Smoking status | ||
| Nonsmoker | 1.00 | — |
| Ex-smoker | 1.10 (0.67–1.79) | 0.713 |
| Current smoker | 1.22 (0.69–2.15) | 0.497 |
| Hypertension | ||
| No | 1.00 | — |
| Yes | 1.08 (0.68–1.71) | 0.734 |
| Loud snoring | ||
| Snoring not louder than talking | 1.00 | — |
| Snoring louder than talk | 3.11 (1.95–4.96) | <0.001 |
| How often awakened suddenly with gasping or choking | ||
| Never | 1.00 | — |
| Rarely or sometimes | 3.52 (1.92–6.46) | <0.001 |
| Once a week or more | 7.92 (3.74–16.74) | <0.001 |
| Nodded or fallen asleep in driving in the past 12 months | ||
| No | 1.00 | — |
| Yes | 2.41 (1.07–5.43) | 0.034 |
| Does not drive | 0.53 (0.18–1.53) | 0.238 |
| Interaction (Geographic location ∗ Sex) | ||
| Quebec | ||
| Female | 1.00 | — |
| Male | 0.83 (0.19–3.56) | 0.803 |
| Ontario | ||
| Female | 1.00 | — |
| Male | 1.12 (0.34–3.66) | 0.856 |
| Prairie area | ||
| Female | 1.00 | — |
| Male | 0.80 (0.16–4.01) | 0.791 |
| BC | ||
| Female | 1.00 | — |
| Male | 4.83 (1.20–19.43) | 0.03 |
| Interaction (BMI ∗ daily 15 min physical activity) | ||
| Overweight (25–30) | ||
| No | 1.00 | — |
| Yes | 0.17 (0.05–0.60) | 0.006 |
| Obesity (≥30) | ||
| No | 1.00 | — |
| Yes | 0.14 (0.04–0.49) | 0.002 |