Table 2.
Factors possibly related to ΔVAS
| ΔVAS < 3 (n = 59) | ΔVAS ≥ 3 (n = 11)a | Mean difference (95% CI)b | |
|---|---|---|---|
| BMI (kg/m2) | 26.5 ± 5.2 | 26.7 ± 4.4 | NA |
| Time of surgery (min) | 99 ± 37 | 119 ± 35 | 20 (−5 to 44) |
| Time of intubation (min) | 120 ± 40 | 142 ± 34 | 22 (−4 to 47) |
| Time on OR (min) | 129 ± 43 | 150 ± 31 | 21 (−2 to 44) |
| Blood loss (cc) | 288 ± 269 | 382 ± 227 | 94 (−70 to 257) |
| Uterine weight (gram) | 220 ± 182 | 215 ± 154 | NA |
| Surgeon’s experiencec | 30 (9–100) | 30 (13–100) | NA |
| Complications (%)d | 8 (13.6) | 1 (9.1) | NA |
Data presented as mean ± standard deviation. Surgeon’s experience refers to the number of previously performed hysterectomies
aOnly 11 cases with a positive ΔVAS ≥ 3 were used for this analysis (cases where experienced difficulty was higher than estimated difficulty)
b95% confidence intervals of the mean difference (independent sample t-test)
cData presented as median (range)
dData presented as number (percentage)