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. 1996 Apr;174(4):1161-8; discussion 1168-70.
doi: 10.1016/s0002-9378(96)70658-0.

The risk of pregnancy after tubal sterilization: findings from the U.S. Collaborative Review of Sterilization

H B Peterson  1 , Z Xia, J M Hughes, L S Wilcox, L R Tylor, J Trussell
Affiliations

The risk of pregnancy after tubal sterilization: findings from the U.S. Collaborative Review of Sterilization

H B Peterson et al. Am J Obstet Gynecol. 1996 Apr.

Abstract

Objective: Our purpose was to determine the risk of pregnancy after tubal sterilization for common methods of tubal occlusion.

Study design: A multicenter, prospective cohort study was conducted in U.S. medical centers. A total of 10,685 women who underwent tubal sterilization was followed up for 8 to 14 years. The risk of pregnancy was assessed by cumulative life-table probabilities and proportional hazards models.

Results: A total of 143 sterilization failures was identified. Cumulative 10-year probabilities of pregnancy were highest after clip sterilization (36.5/1000 procedures) and lowest after unipolar coagulation (7.5/1000) and postpartum partial salpingectomy (7.5/1000). The cumulative risk of pregnancy was highest among women sterilized at a young age with bipolar coagulation (54.3/1000) and clip application (52.1/1000).

Conclusions: Although tubal sterilization is highly effective, the risk of sterilization failure is higher than generally reported. The risk persists for years after the procedure and varies by method of tubal occlusion and age.

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Comment in

  • Reconsider unipolar methods for female sterilization.
    Soderstrom RM. Soderstrom RM. Am J Obstet Gynecol. 1996 Oct;175(4 Pt 1):1083-4. doi: 10.1016/s0002-9378(96)80073-1. Am J Obstet Gynecol. 1996. PMID: 8885789 No abstract available.
  • Ectopic pregnancy.
    Kessel E. Kessel E. Am J Obstet Gynecol. 1996 Dec;175(6):1675. doi: 10.1016/s0002-9378(96)70124-2. Am J Obstet Gynecol. 1996. PMID: 8987959 No abstract available.