Variables | All patients (n = 194) | Non-candidates for CPAP (n = 126) | Candidates for CPAP (n = 68) | P value |
---|---|---|---|---|
Men:women | 106:88 | 56:70 | 50:18 | < 0.001 |
Age, years, mean (SD) | 55.9 (12) | 55.1 (12.3) | 57.4 (11.4) | 0.202 |
Anthropometric variables, mean (SD) | ||||
Body mass index, kg/m2 | 29.2 (5.1) | 27.7 (4.5) | 32 (5.2) | < 0.001 |
Neck circumference, cm | 38.2 (4.6) | 36.7 (4.2) | 41.1 (4) | < 0.001 |
Waist circumference, cm | 98.7 (13.7) | 94 (12.6) | 107.4 (11.2) | < 0.001 |
Hip circumference, cm | 106.6 (10.5) | 103.8 (10) | 111.8 (9.4) | < 0.001 |
Waist-hip ratio | 0.92 (0.11) | 0.9 (0.1) | 0.94 (0.12) | 0.008 |
Comorbidities | ||||
Hypertension | 68 (35.1) | 36 (28.6) | 32 (47.1) | 0.010 |
Diabetes mellitus | 35 (18) | 23 (18.3) | 12 (17.6) | 0.008 |
Dyslipidemia | 70 (36.1) | 44 (34.9) | 26 (38.2) | 0.656 |
Depression | 18 (9.3) | 10 (7.9) | 8 (11.8) | 0.381 |
Anxiety | 35 (18) | 23 (18.3) | 12 (17.6) | 0.916 |
Stroke | 2 (1) | 2 (1.6) | 0 (0) | 0.542 |
Arrhythmia | 7 (3.6) | 2 (1.6) | 5 (7.4) | 0.053 |
Peripheral artery disease | 8 (4.1) | 4 (3.2) | 4 (5.9) | 0.365 |
Hypothyroidism | 12 (6.2) | 7 (5.6) | 5 (7.4) | 0.620 |
Heart disease | 13 (6.7) | 6 (4.8) | 7 (10.3) | 0.141 |
Active smoking | 44 (22.7) | 27 (21.4) | 17 (25) | 0.847 |
Alcohol consumption | 69 (35.9) | 38 (30.4) | 31 (46.3) | 0.029 |
Spirometry, mean (SD) | ||||
FEV1, % | 90.6 (13.8) | 91.5 (14) | 89 (13.5) | 0.236 |
FVC, % | 92 (14.9) | 92.3 (15.1) | 91.5 (14.6) | 0.730 |
Epworth sleepiness scale, mean (SD) | 7.8 (5) | 7.2 (4.6) | 8.8 (5.5) | 0.031 |
Patients with low/high risk of OSA | ||||
Berlin questionnaire, n = 194 | 85/109 | 65/61 | 20/48 | |
STOP-Bang, n = 193 | 57/136 | 49/76 | 8/60 | |
OSA50, n = 185 | 44/141 | 39/80 | 5/61 | |
Epworth scale score ≥ 11, n = 193 | 142/51 | 101/24 | 41/27 | |
HSAT, mean (SD) | ||||
Recording time, min | 414 (84.8) | 418.3 (87.4) | 406 (79.9) | 0.334 |
AHI | 13.7 (15.4) | 7.7 (7.5) | 24.9 (19.5) | < 0.001 |
AHI supine | 24.2 (23.2) | 15 (16) | 41.3 (24.8) | < 0.001 |
Oxygen saturation (SpO2) | 92.5 (3.2) | 93.2 (2.2) | 91.3 (4.1) | < 0.001 |
CT90% | 11.3 (19.5) | 7.6 (18) | 18.3 (20.6) | < 0.001 |
ODI3% | 18.5 (16.3) | 10.9 (8.3) | 32.7 (17.9) | < 0.001 |
ODI4% | 12.9 (14.7) | 6.1 (6.1) | 25.8 (17.4) | < 0.001 |
RP or conventional PSG, mean (SD) | ||||
Recording time, min | 463 (58.2) | 462.3 (50.8) | 464.2 (70.2) | 0.829 |
AHI | 21.3 (19.7) | 10.1 (7.4) | 42.1 (18.5) | < 0.001 |
AHI supine | 24.3 (21.6) | 12.9 (10.6) | 47.2 (20) | < 0.001 |
Oxygen saturation (SpO2) | 93.5 (2) | 94.1 (1.7) | 92.2 (2) | < 0.001 |
CT90% | 7.1 (13.8) | 2.9 (9.9) | 16.4 (0.1) | < 0.001 |
ODI3% | 18.9 (18.2) | 8.6 (6.5) | 34.9 (19.1) | < 0.001 |
ODI4% | 13.3 (15.7) | 5.2 (5.4) | 27.6 (17.7) | < 0.001 |