Words similar to nulliparous

Example sentences for: nulliparous

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Given the relatively late ages of first birth in this population, one might not expect to see a protective effect of having ever given birth, because the well-established protective effects of pregnancy seem to be reversed for first births at about age 30 years or later [ 21 22 ] . This study had a higher percentage of nulliparous women (25% of cases and 26% of controls) than a recent study conducted in the Seattle area (13% of cases and 14% of controls) [ 17 ] . However, the California Teachers Study cohort, with a similarly elevated rate of invasive breast cancer of 151 per 100,000 person years among non-Hispanic white women between 1995 and 1998, reported a similar percentage of nulliparous women (27%) among participants without breast cancer in 1995 [ 23 ] .