Skip to main content
. Author manuscript; available in PMC: 2019 Mar 15.
Published in final edited form as: South Med J. 2018 Mar;111(3):173–177. doi: 10.14423/SMJ.0000000000000779

Table 2:

Operating time and estimated blood loss among women who underwent risk-reducing salpingectomy compared to current and historical control groups who underwent laparoscopic sterilization using titanium clips

Characteristic of operation Median [IQR] P-valuea
Operative time (minutes)
 • RRS (n = 13) 35 [30–40] Ref
 • Study controls (n = 5) 33 [26–39] 0.22
 • Historical controls (n = 22) 27 [21–34] 0.068
Estimated blood loss (mL)
 • RRS (n = 13) 5 [5–10] Ref
 • Study controls (n = 5) 7 [5–10] 0.18
 • Historical controls (n = 22) 10 [5–10] 0.31

IQR, interquartile range; RRS, risk-reducing salpingectomy.

a

Wilcoxon-rank test as a result of non-normal distribution of the covariates.