Table 1 Characteristics of the patients with and without OSA before propensity score matching
Variable | OSA group (N = 113) | Non-OSA group (N = 365) | P value |
|---|---|---|---|
Age(years) | 74.8 ± 4.7 | 72.2 ± 4.6 | 0.00* |
Sex | |||
Male | 79(69.9%) | 189(51.8%) | |
Female | 34(30.1%) | 176(48.2%) | 0.00* |
BMI(Kg/m2) | 23.9 ± 2.8 | 22.6 ± 2.2 | 0.00* |
Diabetes Mellitus | 59(52.2%) | 113(31.0%) | 0.00* |
Hypertension | 72(63.7%) | 201(55.1%) | 0.13 |
Smoking | 63(55.8%) | 109(30.0%) | 0.00* |
ASA classification | 1.7 ± 0.5 | 1.6 ± 0.5 | 0.05 |
Operative time(min) | 151.2 ± 33.6 | 147.0 ± 37.2 | 0.28 |
Blood loss | 441.2 ± 71.6 | 431.9 ± 70.4 | 0.22 |
Screw number | 4.5 ± 0.9 | 4.5 ± 0.9 | 0.88 |
SSIs | 22(19.5%) | 10(2.7%) | 0.00* |