Listar por autor "Lee, Nancy C."

Listar por autor "Lee, Nancy C."

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  • A case-control study of breast cancer and hormonal contraception in Costa Rica 
    Lee, Nancy C.; Rosero-Bixby, Luis; Oberle, Mark W.; Grimaldo Vásquez, Carmen; Whatley, Annes S.; Rovira, Elizabeth Z. (Oxford University Press, 1987)
    By 1981, 11% of married women in Costa Rica ages 20-49 years had used depot-medroxyprogesterone acetate (DMPA) and 58% had used oral contraceptives (OCs). Since 1977, the Costa Rican Ministry of Health has maintained ...
  • Cervical cancer risk and use of depot-medroxyprogesterone acetate in Costa Rica 
    Oberle, Mark W.; Irwin, Kathleen L.; Rosero-Bixby, Luis; Fortney, Judith A.; Lee, Nancy C.; Whatley, Annes S.; Bonhomme, Michele G. (International Epidemiological Association, 1988)
    The long-term safety of the injectable contraceptive, depot medroxyprogesterone acetate (DMPA), has been the subject of intense debate, chiefly because of reports of breast and endometrial neoplasia in animal studies. Most ...
  • Oral contraceptives and cervical cancer risk in Costa Rica 
    Irwin, Kathleen L.; Rosero-Bixby, Luis; Oberle, Mark W.; Lee, Nancy C. (American Medical Association, 1988)
    To examine the relationship between cervical cancer and oral contraceptive (OC) use, we analyzed data from a population-based, case-control study in Costa Rica. Women aged 25 to 58 years in whom cervical cancer was diagnosed ...
  • Reproductive history and breast cancer in a population of high fertility, Costa Rica, 1984-85 
    Rosero-Bixby, Luis; Oberle, Mark W.; Lee, Nancy C. (John Wiley & Sons, Inc., 1987)
    The relationship between breast cancer and women’s reproductive history in Costa Rica was analyzed using logistic regression methods on data from 171 breast cancer cases and 826 population-based controls aged 25-5B years. ...
  • The effect of using different reference dates for control exposure measurement on relative risk estimates in a case-control study 
    Rampey, Alvin H.; Irwin, Kathleen L.; Oberle, Mark W.; Kinchen, Steven; Lee, Nancy C.; Marsden, Anne; Rosero-Bixby, Luis (Elsevier, 1993)
    In case-control studies in which case and control enrollment periods are not identical, exposure status for time-dependent variables is often measured relative to a reference date. Using data from a case-control study of ...