ObjectiveTo prospectively examine whether the association between tubal ligation, hysterectomy, unilateral oophorectomy, and ovarian cancer varied by patient, tumor, and surgical characteristics.DesignTwo prospective cohort studies (Nurses'…
PurposeCommon analgesics (aspirin, non-aspirin NSAIDs, and acetaminophen) may be associated with hormone-related cancers, possibly via effects on sex hormone and prolactin concentrations.MethodsBetween 1996 and 1999, 29,611 participants in …
BackgroundThe rodent carcinogen acrylamide was discovered in 2002 in commonly consumed foods. Epidemiologic studies have observed positive associations between acrylamide intake and endometrial, ovarian, and breast cancer risks, which sugge…
ObjectiveThe objective of the study was to evaluate the current state of clinical assays for estradiol in the context of their applications.ParticipantsThe participants were appointed by the Council of The Endocrine Society and charged with…
Iron, potassium, zinc, and other minerals might impact the development of premenstrual syndrome (PMS) through multiple mechanisms, but few studies have evaluated these relations. We conducted a case-control study nested within the prospecti…
Body size in early life has been associated with breast cancer risk. This may be partly mediated through the insulin-like growth factor (IGF) pathway. The authors assessed whether birth weight, body fatness at ages 5 and 10 years, and body …
BackgroundThiamine, riboflavin, niacin, vitamin B-6, folate, and vitamin B-12 are required to synthesize neurotransmitters that are potentially involved in the pathophysiology of premenstrual syndrome (PMS).ObjectiveThe objective was to eva…
BackgroundModerate to severe premenstrual syndrome (PMS) affects 8%-20% of premenopausal women and causes substantial levels of impairment, but few modifiable risk factors for PMS have been identified. Adiposity may impact risk through the …
BackgroundThe surface epithelial glycoprotein MUC1 becomes overexpressed and hypoglycosylated in adenocarcinomas; similar changes occur during nonmalignant inflammatory events. Antibodies developed against tumor-like MUC1 in response to suc…
BACKGROUND: An inverse association between adult body mass index (BMI) and risk of endometriosis has frequently been reported. However, the association between body size during childhood and early adulthood and endometriosis is not as well …
BACKGROUND: Endometriosis is a prevalent but enigmatic gynecologic disorder for which few modifiable risk factors have been identified. Fish oil consumption has been associated with symptom improvement in studies of women with primary dysme…
BACKGROUND: In the one study examining the relationship, adolescent physical activity was not associated with risk for endometriosis. Case-control studies have shown 40-80% reductions in risk for adult activity, while only an 11% reduction …
BACKGROUND: Regular exercise has been associated with a 40%-80% reduction in risk for endometriosis in several case-control studies. However, women experiencing symptoms prior to their diagnosis may be less likely to exercise than healthy c…
Hormone receptor expression in tumors may offer etiologic information for ovarian cancer, particularly in light of known associations with hormonal and reproductive risk factors. Tissue microarrays constructed from 157 paraffin-embedded blo…
BackgroundRelatively little is known about factors that influence the initial development of premenstrual syndrome (PMS) and premenstrual dysphoric disorder (PMDD), although these conditions are common in reproductive age women and are asso…
Moderate to severe premenstrual syndrome (PMS) affects as many as 20% of premenopausal women. Although smoking may be more common in women with PMS, it is unknown whether smoking is involved in PMS etiology. In 1991-2001, the authors conduc…
ObjectiveTo investigate a previously hypothesized relation between natural hair color and endometriosis.DesignProspective cohort study.SettingNurses' Health Study II with 10 years of follow-up.Participant(s)A total of 90,065 women, 25-42 ye…
The authors investigated the relations of demographic, anthropometric, and lifestyle factors with endometriosis in the Nurses' Health Study II prospective cohort. During 10 years of follow-up (1989-1999), 1,721 cases of laparoscopically con…
ObjectiveTo investigate the relation between the fetal environment and endometriosis.DesignProspective cohort study.SettingNurses' Health Study II with 10 years of follow-up.Participant(s)Eighty-four thousand, four hundred forty-six women a…
OBJECTIVE: To clarify the temporal complexities of the relation between reproductive factors and endometriosis. METHODS: We analyzed 10 years of prospective data from the Nurses' Health Study II cohort. Information was obtained through ques…
We evaluated predictors of plasma concentrations of dichlorodiphenyldichloroethylene (DDE), a metabolite of dichlorodiphenyltrichloroethane (DDT), and polychlorinated biphenyls (PCBs) in a group of 240 women, controls from a breast cancer c…