Causes of death in sleep apnoea/hypopnoea syndrome patients, grouped according to treatment
| Cause | Surgery | Diet | CPAP | Nontreated | Subjects n (%) |
| Acute myocardial infarction | 4 | 6 | 10 (21) | ||
| Stroke | 1 | 2 | 3 (6) | ||
| Sudden death | 1 | 1 | 1 | 3 (6) | |
| Other cardiovascular# | 1 | 2 | 3 (6) | ||
| Respiratory¶ | 1 | 2 | 6 | 9 (18) | |
| Traffic accidents | 2 | 2 (4) | |||
| Neoplasias | 3 | 2 | 1 | 4 | 10 (21) |
| Others+ | 1 | 1 | 7 | 9 (18) | |
| Total n (%) | 3 (6) | 10 (21) | 6 (12) | 30 (61) | 49 (100) |
CPAP: continuous positive airway pressure
#: includes one death from heart failure and two provided by the Mortality Registry (MR)
¶: three deaths from respiratory failure in the postoperative period, three from chronic respiratory failure in chronic obstructive pulmonary disease patients and three provided by the MR
+: three deaths due to choking, suicide and chronic renal failure and six provided by the MR