In a sensitivity analysis that defined short sleep duration as less than 6 hours, persistent short sleepers (during and after ...

Although the proportion of nulliparous women has increased since the mid-1970s, studies to date have been too small to test the hypothesis that endometrial cancer risk factors are more common in ...

The patient was never given birth, which may be relevant to the diagnosis. Literature review suggests that being nulliparous may be a significant risk factor for developing uterine carcinosarcoma.

Nulliparous women were notably older (mean age 58.3 years) compared to parous women (mean age 38.4 years at first sampling), reflecting their earlier birth years (1941 versus 1958 on average).

Background: In nulliparous women dystocia is the most common obstetric problem and its etiology is largely unknown. The frequency of augmentation and cesarean delivery related to dystocia is high ...