Table 1.
Demographics at baseline, no significant difference was found in these baseline data between the ASP group and the control group (P > 0.05).
| Items | ASP group | Control group | P value |
|---|---|---|---|
| Sample size | 106 | 111 | |
| Age (years) | 45.27 ± 8.67 | 45.15 ± 8.20 | 0.916 |
| ≤ 40 years (n) | 30 (28.3) | 33 (29.7) | 0.697 |
| > 40 years (n) | 76 (71.7) | 78 (70.3) | 0.951 |
| BMI (kg/m2) | 26.44 ± 1.99 | 26.99 ± 1.76 | 0.331 |
| Previous general anesthesia (n, %) | 6, 5.7 | 7, 6.3 | 0.841 |
| Education background | |||
| High school or lower graduates | 80 | 86 | 0.728 |
| College graduates | 25 | 25 | 0.853 |
| Master or higher | 1 | 0 | 0.305 |
| Marital status | |||
| Married | 94 | 95 | 0.497 |
| Single | 12 | 16 | 0.497 |
| Previous childbearing (n, %) | 98, 92.5 | 99, 89.2 | 0.406 |
| Duration of surgery (min) | 46.88 ± 15.82 | 48.01 ± 16.35 | 0.560 |
| Duration of surgery > 60 min (n) | 11 | 14 | 0.606 |
| Duration of anesthesia (min) | 60.57 ± 16.22 | 61.77 ± 16.74 | 0.590 |