Table 2: Intraoperative characteristics.

CharacteristicsLow-volume surgeon ()
Number of cases (%)
High-volume surgeon ()
Number of cases (%)
value

Operative time
 Median in minutes (95% CI)148 (84–212)146 (91–201)0.66

Blood loss
 Median in mL (95% CI)547 (136–958)308 (104–412)<0.001

Conversion (laparoscopy only) 
 No 195 (73) 205 (82)0.01
 Yes71 (27)44 (18)

95% confidence interval.