Table 5.
PSG study of OSA patients by gender
| Index | Male | Female | P-value* |
| AHI (h−1) | 43.76±24.33 | 32.12±27.34 | 0.001 |
| 5–15 h−1 | 67 (18.5%) | 21 (39.6%) | <0.001 |
| 15–30 h−1 | 53 (14.6%) | 11 (20.8%) | |
| >30 h−1 | 242 (66.9%) | 21 (39.6%) | |
| RERA (h−1) | 0.58±1.58 | 0.62±1.20 | NS |
| RDI (h−1) | 44.36±24.49 | 32.76±27.70 | 0.002 |
| Nadir SaO2 (%) | 70.27±14.65 | 72.58±15.70 | NS |
| >90% | 2 (0.6%) | 1 (1.9%) | 0.041 |
| 85%–90% | 49 (13.5%) | 9 (17.0%) | |
| 80%–85% | 59 (16.3%) | 15 (28.3%) | |
| <80% | 252 (69.6%) | 28 (52.8%) | |
| Average SaO2 (%) | 93.00±3.54 | 93.06±4.20 | NS |
| ODI (h−1) | 44.65±25.68 | 36.60±28.54 | 0.036 |
| T90 (%) | 23.78±26.42 | 21.10±28.84 | NS |
Data are presented as count (percentage) or mean±SD (n=415). AHI: apnea-hypopnea index; RERA: respiratory effort related arousal; RDI: respiratory disturbance index; ODI: oxygen desaturation index; T90: percentage of recording time with SaO2 of <90%; NS: non-significant
*
Independent-sample t-test or Chi-squared test, as appropriate