In this prospective, case-control study, a step-wise logistic regression model was used to examine the relationship between the consumption of oral contraceptives before pregnancy and the potential increase in the risk of miscarriage. Consumption of oral contraceptives for more than 2 years before pregnancy is associated with a higher risk of miscarriage. (c) 2005 by American Society for Reproductive Medicine.
机构:
Univ Fed Sao Paulo, Dept Obstet & Gynecol, Family Planning Clin, BR-09090050 Sao Paulo, BrazilUniv Fed Sao Paulo, Dept Obstet & Gynecol, Family Planning Clin, BR-09090050 Sao Paulo, Brazil
Guazzelli, CAF
Lindsey, PC
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机构:Univ Fed Sao Paulo, Dept Obstet & Gynecol, Family Planning Clin, BR-09090050 Sao Paulo, Brazil
Lindsey, PC
de Araújo, FF
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de Araújo, FF
Barbieri, M
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Barbieri, M
Petta, CA
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Petta, CA
Aldrighi, JM
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机构:Univ Fed Sao Paulo, Dept Obstet & Gynecol, Family Planning Clin, BR-09090050 Sao Paulo, Brazil