OBJECTIVE: To evaluate the association between pregravid use of a variety of contraceptive methods and subsequent fecundability. DESIGN: Prospective cohort study. SETTING: Denmark and North America, 2007-19. PARTICIPANTS: 17 954 women wh…
The association between dietary fat and fertility is not well studied. We evaluated intakes of total fat, saturated fatty acids, monounsaturated fatty acids, polyunsaturated fatty acids, trans fatty acids (TFA), ω-3 fatty acids, and ω-6 fat…
BACKGROUND: The synthetic solvent tetrachloroethylene (PCE), commonly used in dry cleaning operations, is a human neurotoxicant and carcinogen. However, its effect on reproduction is poorly understood, as prior studies have been limited to …
BACKGROUND: Animal studies have shown that a high intake of galactose, a breakdown product of lactose, increases ovarian toxicity. Few epidemiologic studies, to our knowledge, have examined the association between dairy intake and fertility…
STUDY QUESTION: To what extent is preconception use of pain-relieving medication associated with female fecundability? SUMMARY ANSWER: Women who used naproxen or opioids had slightly lower fecundability than women who did not use any pain-…
PURPOSE: The aim of this study was to evaluate the association between menstrual cycle characteristics in early life and adulthood and fecundability. METHODS: Pregnancy Study Online (PRESTO) is an Internet-based preconception cohort study …