Table 3.
Operating Room Time and Length of Stay According to Type of Anesthesia
| Variable | General anesthesia (n=490) | Spinal anesthesia (n=746) | Bivariate linear regression | Multivariate linear regressiona) | ||
|---|---|---|---|---|---|---|
|
|
|
|||||
| Betab) (95% CI) | p-value | Betab) (95% CI) | p-value | |||
| Preop room time (min) | 65.4±32.2 | 56.4±16.1 | 9.01 (6.29 to 11.73) | <0.001 | 9.42 (6.67 to 12.17) | <0.001 |
| Operative time (min) | 112.1±21.6 | 111.4±15.4 | 0.71 (−1.36 to 2.78) | 0.499 | −0.38 (−2.44 to 1.68) | 0.717 |
| Postop room time (min) | 56.1±21.7 | 43.9±19.6 | 12.23 (9.9 to 14.57) | <0.001 | 12.74 (10.39 to 15.1) | <0.001 |
| Postop length of hospitalization (day) | 27.4±14.1 | 25.6±11.3 | 1.84 (0.41 to 3.26) | 0.012 | 2.49 (1.07 to 3.91) | 0.001 |
Values are presented as mean±standard deviation.
CI: confidence interval, Preop: preoperative, Postop: postoperative.
a)
Multivariate linear regression analysis was performed for each outcome variable adjusted for age and modified Charlson Comorbidity Index.
b)
Unstandardized beta coefficient represents unit change in the outcome variable of general anesthesia compared to that of spinal anesthesia.