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DOI: 10.1111/J.1471-0528.1983.TB08609.X
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摘要: A prospective study was initiated at 2 family planning clinics in 1968 with a view toward providing balanced of the beneficial and harmful effects different contraceptive methods. The method investigation proved successful subsequently extended to total 17 parts England Scotland. By mid 1974 when recruitment discontinued 17032 women had joined they have remained under observation ever since. Over years substantial proportion these (or their husbands) chose be sterilized. Findings about frequency methods efficacy sequelae tubal sterilization among survey participants are summarized. At time each woman between 25-39 age married white British subject willing participate either current user oral contraceptives (OCs) least 5 months standing or diaphragm an IUD without prior exposure OC. end 1981 2243 (13%) undergone procedure. Another 3351 (21%) husbands who vasectomy. most common female procedure used laparoscopic diathermy (776 operations) while ligation laparotomy came close second (637 operations). About 19% operations were performed delivery during subsequent 4 weeks. Open rather than procedures more commonly 1968-71 period but reverse case subsequently. 15 known experienced failure sterilization. 1 twice thus sterilized 3 times. rate 12 after surgery (0.37/100 years) almost times higher (0.10/100 years). Overall it estimated that every 1000 undergoing would pregnancy year 8 10 7 years. reversal operation is been undertaken only reversals successful. Of 16 accidental pregnancies ectopic. In analysis comparing those whose vasectomy there little evidence any excess occurrence gynecological psychiatric disorders former group.