To the Editor: Modan and colleagues (July 26 issue)1 concludethat oral contraceptives do not protect against ovarian cancerin Israeli Jewish women carrying BRCA mutations. We have shown,in two studies of Jewish and non-Jewish women with BRCA mutations,that the use of oral contraceptives was strongly protectiveagainst ovarian cancer.2,3 In our recent study, the odds ratiofor ovarian cancer among women who had used oral contraceptiveswas 0.44 (95 percent confidence interval, 0.28 to 0.68).3
Relevant differences may exist between Jews and non-Jews, betweencarriers of the three founder mutations common among Jews andcarriers of other . . . [Full Text of this Article]
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