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Table 2 Factors possibly related to ΔVAS

From: Gynaecologists estimate and experience laparoscopic hysterectomy as more difficult compared with abdominal hysterectomy

  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
  1. Data presented as mean ± standard deviation. Surgeon’s experience refers to the number of previously performed hysterectomies
  2. aOnly 11 cases with a positive ΔVAS ≥ 3 were used for this analysis (cases where experienced difficulty was higher than estimated difficulty)
  3. b95% confidence intervals of the mean difference (independent sample t-test)
  4. cData presented as median (range)
  5. dData presented as number (percentage)