Table 1
Characteristics of subjects in the OSA group and control group 2
| OSA (n=21) | Control group 2 (n=18) | p value | |
|---|---|---|---|
| Sex (M/F) | 17/4 | 12/6 | |
| Age (years) | 54 (2) | 61 (2) | <0.05 |
| BMI (kg/m2) | 30.9 (1.1) | 25.5 (1.1) | <0.05 |
| AHI (n/hour) | 37 (4) | – | |
| Sao 2<90% (% of TST) | 23.9 (5.4) | 1.2 (2.0) | |
| Mean Sao 2 (%) | 91.8 (0.7) | 94.5 (1.4) | |
| Minimum Sao 2(%) | 66.1 (2.9) | 84.3 (2.5) | |
| Arterial hypertension | 12 (57%) | 7 (39%) | <0.05 |
| Coronary artery disease | 1 (5%) | 2 (11%) | NS |
| Cerebrovascular disease | 2 (10%) | 3 (17%) | NS |
| Diabetes mellitus | 1 (5%) | 3 (17%) | NS |
| Chronic renal failure | – | – | |
| Hypercholesterolaemia | 7 (33%) | 5 (28%) | NS |
| Smoking | 8 (38%) | 8 (44%) | NS |
| ACE inhibitors | 4 (19%) | 5 (28%) | NS |
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Data are given as mean (SE) or as total numbers.
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BMI = body mass index; AHI = apnoea-hypopnoea index; Sao 2 = nocturnal oxygen saturation; TST = total sleep time; NS = not significant.
