Sarah P Megdal

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The association between occupations that involve night shift work (a surrogate for exposure to light at night with subsequent melatonin suppression) and breast cancer risk is uncertain. We therefore conducted a systematic review and meta-analysis of observational studies to assess the effects of night work on breast cancer risk. Data sources were MEDLINE(More)
BACKGROUND AND PURPOSE We explored sleep patterns including morning-evening preference and their associations with other lifestyle determinants among high school students. PARTICIPANTS AND METHODS We conducted a cross-sectional survey of students grades 9-12 from a private high school in the United States. One hundred and thirty-one students completed an(More)
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