title: Determinants of emergency contraception non-use among women in unplanned or ambivalent pregnancies.
abstract: Objective To analyze the determinants of emergency contraception non-use among women in unplanned and ambivalent pregnancies. Method Cross-sectional study with a probabilistic sample of 366 pregnant women from 12 primary health care units in the city of São Paulo, Brazil. A multinomial logistic regression was performed, comparing three groups: women who used emergency contraception to prevent ongoing pregnancies (reference); women who made no use of emergency contraception, but used other contraceptive methods; and women who made no use of any contraceptive methods at all. Results Cohabitation with a partner was the common determinant of emergency contraception non-use. No pregnancy risk awareness, ambivalent pregnancies and no previous use of emergency contraception also contributed to emergency contraception non-use. Conclusion Apart from what is pointed out in the literature, knowledge of emergency contraception and the fertile period were not associated to its use.
authors.affiliation: School of Nursing, University of São Paulo, São Paulo, São Paulo, Brazil.
authors.forename: Osmara Alves Dos
authors.initials: OA
authors.lastname: Santos
authors.affiliation: School of Nursing, University of São Paulo, São Paulo, São Paulo, Brazil.
authors.forename: Ana Luiza Vilela
authors.initials: AL
authors.lastname: Borges
authors.affiliation: School of Nursing, University of São Paulo, São Paulo, São Paulo, Brazil.
authors.forename: Christiane Borges do Nascimento
authors.initials: CB
authors.lastname: Chofakian
authors.affiliation: Health Institute, Health Department of the State of São Paulo, São Paulo, São Paulo, Brazil.
authors.forename: Kátia Cibelle Machado
authors.initials: KC
authors.lastname: Pirotta