Results of logistic regression analysis affecting survival split by sex
| Variable | Males | Females | ||||
| OR | 95% CI | p-value | OR | 95% CI | p-value | |
| Age years | 1.10 | 1.07–1.13 | <0.001 | 1.12 | 1.06–1.18 | <0.001 |
| Weight kg | 1.00 | 0.97–1.03 | 0.97 | 1.00 | 0.97–1.04 | 0.79 |
| BMI kg·m−2 | 1.05 | 1.01–1.10 | 0.034 | 1.00 | 0.82–1.23 | 0.97 |
| Smoking cigarettes per day | 1.00 | 0.98–1.02 | 0.97 | 1.03 | 1.01–1.06 | 0.037 |
| Alcohol units per week | 1.02 | 1.01–1.04 | 0.010 | 1.01 | 0.91–1.12 | 0.86 |
| ESS (n/24) | 1.01 | 0.97–1.06 | 0.58 | 1.09 | 0.99–1.19 | 0.07 |
| AHI (n) | 1.02 | 1.01–1.03 | 0.014 | 1.02 | 1.01–1.03 | 0.012 |
| OSAHS severity (mild/moderate/severe) | 2.11 | 0.91–4.93 | 0.07 | 1.94 | 0.41–9.21 | 0.21 |
| CPAP use (yes/no) | 16.77 | 6.21–45.32 | <0.001 | 10.94 | 3.16–37.82 | <0.001 |
| CPAP hours per night | 1.31 | 1.19–1.44 | <0.001 | 1.13 | 0.94–1.36 | 0.18 |
| Type II diabetes mellitus (yes/no) | 2.74 | 1.22–6.19 | 0.015 | 6.71 | 1.83–24.60 | 0.004 |
| Respiratory condition (yes/no) | 1.36 | 0.76–2.42 | 0.30 | 1.18 | 0.41–3.39 | 0.77 |
| Depression/anxiety (yes/no) | 1.36 | 0.68–2.74 | 0.39 | 1.22 | 0.37–3.99 | 0.74 |
| Angina (yes/no) | 2.56 | 0.66–9.85 | 0.17 | 4.33 | 0.67–28.09 | 0.12 |
| Hypertension (yes/no) | 1.18 | 0.67–2.08 | 0.56 | 1.36 | 0.47–3.93 | 0.57 |
| Myocardial infarction (yes/no) | 1.04 | 0.44–2.45 | 0.92 | 1.68 | 0.23–12.46 | 0.62 |
OR: odds ratio; CI: confidence intervals; BMI: body mass index; ESS: Epworth sleepiness scale; AHI: apnoea–hypopnoea index; OSAHS: obstructive sleep apnoea–hypopnoea syndrome; CPAP: continuous positive airway pressure.