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Effects of tubal sterilization on morbidity rates analyzed.


 Morbidity rates associated with tubal sterilization procedures were analyzed, based on the experience of 514 women who underwent a tubal sterilization procedure between 1970 and 1971; these women were matched with 514 controls for age, parity, and other demographic features who had given birth at the same hospital during the same time period. Both groups were followed for 7 years. A graph shows significant differences in the number of readmissions to the hospital among women who had been sterilized vs. controls. 22% (n=113) of the women who had had tubal sterilization were rehospitalized during the 7-year follow-up vs. 31% (n=157) of controls. Of these readmissions, 31% of those among the sterilized women were for gynecological reasons compared with only 14% of those among the controls. In addition, 68% of sterilized women required readmission for medical-surgical reasons, compared with only 21% of controls. A large proportion of the readmissions for control women was for delivery, so a ratio of roughly 10:1 (sterilized:unsterilized) for women aged fewer than 20 years and older than 40 years and a ratio of 2:1 for the middle year women were found for hospital readmission for medical-surgical problems. Menstrual irregularities were the most common complaints of sterilized women, whereas admissions for salpingitis (PID) were greater among controls than sterilized women, indicating that the procedure may have a protective effect here.
