Comorbidities | On CPAP (n=895, 76.2%) | No CPAP (n=279, 23.8%) | p-value | ||||
Male (n=774, 86.5%) | Female (n=121, 13.5%) | p-value | Male (n=215, 77.1%) | Female (n=64, 22.9%) | p-value | <0.001 | |
Type II diabetes mellitus | 121/649 (18.6%) | 20/105 (19.1%) | 0.50 | 45/168 (26.8%) | 17/54 (31.5%) | 0.92 | 0.003 |
Hypertension | 138/621 (22.2%) | 15/80 (18.8%) | 0.48 | 37/186 (19.9%) | 14/59 (23.7%) | 0.53 | 0.74 |
Ischaemic heart disease | 82/659 (12.4%) | 14/98 (14.3%) | 0.61 | 47/161 (29.2%) | 5/43 (11.6%) | 0.20 | <0.001 |
Angina | 65/655 (9.9%) | 13/97 (13.4%) | 0.29 | 16/138 (11.6%) | 2/40 (5.0%) | 0.22 | 0.92 |
Myocardial infarction | 29/659 (4.4%) | 3/102 (2.9%) | 0.49 | 35/198 (17.7%) | 3/60 (5%) | 0.02 | <0.001 |
Heart failure | 26/698 (3.7%) | 4/107 (3.7%) | 1.00 | 9/187 (4.8%) | 0/57 (0.0%) | 0.09 | 0.98 |
Atrial fibrillation | 65/480 (13.5%) | 6/67 (9.0%) | 0.30 | 28/141 (19.9%) | 7/41 (17.1%) | 0.69 | 0.04 |
Stroke | 43/721 (6.0%) | 13/113 (11.5%) | 0.03 | 23/204 (11.3%) | 4/60 (6.7%) | 0.30 | 0.06 |
Transient ischaemic attack | 77/733 (10.5%) | 12/108 (11.1%) | 0.85 | 27/205 (13.2%) | 5/60 (8.3%) | 0.31 | 0.50 |
Smoking | 44/312 (14.1%) | 6/48 (12.5%) | 0.77 | 18/99 (18.2%) | 1/26 (3.9%) | 0.07 | 0.72 |
Asthma | 35/650 (5.4%) | 10/81 (12.4%) | 0.01 | 8/179 (4.5%) | 5/47 (10.6%) | 0.11 | 0.82 |
Data are presented as n/N (%). Statistical significance is at p<0.05/12=0.004. CPAP: continuous positive airway pressure.