Table 5.
General characteristics of patients classified according to POSA Definition 3
| Patient characteristics | All patients (n = 624) | Non-POSA (n = 413, 66.2%) | POSA (n = 211, 33.8%) | p value |
|---|---|---|---|---|
| Age (years), mean (SD) | 50.2 (13.7) | 50.9 (13.5) | 49 (13.9) | 0.029* |
| Male sex, n (%) | 325 (52.08) | 215 (52.1) | 110 (52.1) | 0.986 |
| BMI (kg/m2), mean (SD) | 36.6 (9.6) | 37 (8.3) | 34.1 (7.9) | < 0.001* |
| DM, n (%) | 205 (32.85) | 115 (35.5) | 90 (49.7) | 0.002* |
| COPD, n (%) | 230 (36.8) | 148 (45.5) | 82 (45.6) | 0.997 |
| Asthma, n (%) | 244 (39.1) | 157 (47.4) | 87 (47.3) | 0.974 |
| HTN, n (%) | 308 (49.4) | 123 (36.3) | 87 (48.6) | 0.007* |
| IHD, n (%) | 259 (41.5) | 170 (50) | 89 (50) | 1 |
| Epworth Sleepiness Scale score, mean (SD) | 11.1 (5.6) | 11.3 (5.38) | 10.6 (5.93) | 0.698 |
| AHI score, mean (SD) | 22.2 (17) | 27.6 (21.4) | 18.9 (19.9) | < 0.001* |
| AHI score in REM sleep, mean (SD) | 36.5 (21.5) | 39.7 (21.8) | 30.3 (19.6) | < 0.001* |
| AHI in the supine position, mean (SD) | 25.4 (20.8) | 27.9 (23) | 20.6 (14.6) | < 0.001* |
| Mean O2 saturation, mean (SD) | 94.7 (2.3) | 94.7 (2.2) | 94.8 (2.4) | 1 |
| Time spent < 90% O2 saturation, mean (SD) | 7 (14.3) | 7.36 (14.6) | 6.2 (13.6) | 0.829 |
*p value of <0.05 is considered to be significant