Table 1. a) Demographics, clinical characteristics and b) sleep study results.
| a) | |||||
| Control (n = 14) | Mild (n = 28) | Moderate and severe (n = 40) | p | Total (n = 82) | |
| Age (y.) | 52.5 (40, 56) | 53.5 (47.5, 61) | 57 (50, 62) | 0.040*a | 54 (48, 62) |
| Males n (%) | 5 (36) | 18 (64) | 30 (75) | 0.030* | 53 (65) |
| BMI (kg/cm2) | 24 (23, 26) | 28 (25, 30) | 31.5 (28, 35) | < 0.001*b | 29 (25, 33) |
| Epworth | 7 (5, 9) | 12 (8, 15) | 11 (7, 14.5) | 0.040*c | 10 (6, 14) |
| AHT n (%) | 0 (0) | 2 (7) | 22 (55) | < 0.001*b | 20 (24) |
| Smoker n (%) | 5 (36) | 17 (61) | 18 (45) | 0.325 | 49 (60) |
| Diabetes n (%) | 0 (0) | 3 (11) | 9 (22.5) | 0.094 | 11 (13) |
| Dyslipidemia n (%) | 2 (14) | 5 (18) | 9 (22.5) | 0.440 | 18 (22) |
| b) | |||||
| AHI (n./hour) | 2 (1, 4) | 9 (7, 12) | 48.5 (21, 78) | < 0.001*d | 14.5 (6, 47) |
| Mean SpO2 (%) | 95.5 (95, 96) | 95 (94, 96.5) | 93 (92, 95) | < 0.001*b | 94 (93, 96) |
| CT90 (%) | 0 (0, 0) | 0 (0, 0.3) | 10 (3, 23) | < 0.001*b | 0.4 (0, 11) |
| ODI4 (%) | 1 (0, 3) | 5 (3, 10) | 44 (19, 71) | < 0.001*b | 11 (3.5, 43) |
Data shown as median (interquartile range) or number of cases (percentages).
Symbols indicate a statistically significant difference between the different groups (*), the moderate and severe group with OSA versus the control group (a), the moderate and severe group with OSA versus the other groups (b), the control group versus the mild group with OSA (c), and all the groups pairwise (d).
BMI, body mass index; AHT, arterial hypertension; AHI, apnea-hypopnea index; SpO2, arterial oxygen saturation; CT90, % of total sleep time with SpO2 lower than 90%; ODI4, 4% oxygen desaturation index; OSA, obstructive sleep apnea.