title: Lifetime induced abortion: a comparison between women living and not living with HIV.
abstract: BACKGROUND
  Studies aimed at understanding the association between induced abortion and HIV are scarce and differ on the direction of the association. This paper aims to show the prevalence of induced abortion in a sample of pregnancies of women living and not living with HIV/Aids, determining variables associated with pregnancy termination and linked to the life course of women and to the specific context of the pregnancy.
  
  
  METHODS
  Data came from a cross-sectional study, using interviewer-administered questionnaire, developed with women that attended public health services in Porto Alegre, Brazil. A generalized estimating equation model with logit link measured the association between determinants and abortion.
  
  
  RESULTS
  The final sample was composed of 684 women living with HIV/Aids (2,039 pregnancies) and 639 women not living with HIV/Aids (1,539 pregnancies). The prevalence of induced abortion among pregnancies in women living with HIV/Aids was 6.5%, while in women not living with HIV/Aids was 2.9%. Among women living with HIV/Aids, the following were associated with induced abortion in the multivariable analysis: being older, having a higher education level, having had more sexual partners (i.e., variables linked to the life course of women), having had children prior to the index pregnancy and living with a sexual partner during pregnancy (i.e., variables linked to the context of each pregnancy). On the other hand, among women not living with HIV/Aids, only having a higher education level and having had more sexual partners (i.e., determinants linked to the life course of women) were associated with voluntary pregnancy termination in multivariable analysis.
  
  
  CONCLUSIONS
  Although determinants are similar between women living and not living with HIV/Aids, prevalence of induced abortion is higher among pregnancies in women living with HIV/Aids, pointing to their greater social vulnerability and to the need for public policy to address prevention and treatment of HIV associated with reproductive issues.
authors.affiliation: Graduate Studies Program in Epidemiology, Federal University of Rio Grande do Sul (Universidade Federal do Rio Grande do Sul), Porto Alegre, Rio Grande do Sul, Brazil.
authors.forename: Flávia Bulegon
authors.initials: FB
authors.lastname: Pilecco
authors.affiliation: Graduate Studies Program in Public Health, Federal University of Rio Grande do Sul (Universidade Federal do Rio Grande do Sul), Porto Alegre, Rio Grande do Sul, Brazil; Department of Professional Assistance and Guidance, Nursing School, Federal University of Rio Grande do Sul (Universidade Federal do Rio Grande do Sul), Porto Alegre, Rio Grande do Sul, Brazil.
authors.forename: Luciana Barcellos
authors.initials: LB
authors.lastname: Teixeira
authors.affiliation: Graduate Studies Program in Epidemiology, Federal University of Rio Grande do Sul (Universidade Federal do Rio Grande do Sul), Porto Alegre, Rio Grande do Sul, Brazil; Department of Statistics, Federal University of Rio Grande do Sul (Universidade Federal do Rio Grande do Sul), Porto Alegre, Rio Grande do Sul, Brazil.
authors.forename: Alvaro
authors.initials: A
authors.lastname: Vigo
authors.affiliation: Department of Health Service and Population Research, Institute of Psychiatry, King's College London, London, United Kingdom.
authors.forename: Michael E
authors.initials: ME
authors.lastname: Dewey
authors.affiliation: Graduate Studies Program in Epidemiology, Federal University of Rio Grande do Sul (Universidade Federal do Rio Grande do Sul), Porto Alegre, Rio Grande do Sul, Brazil; Department of Social Medicine, Federal University of Rio Grande do Sul (Universidade Federal do Rio Grande do Sul), Porto Alegre, Rio Grande do Sul, Brazil.
authors.forename: Daniela Riva
authors.initials: DR
authors.lastname: Knauth
mesh_terms: D000028:Abortion, Induced / Q000706:statistics & numerical data*; D000293:Adolescent; D000328:Adult; D001938:Brazil / Q000453:epidemiology; D016001:Confidence Intervals; D005260:Female; D015658:HIV Infections / Q000453:epidemiology*; D006801:Humans; D016015:Logistic Models; D008875:Middle Aged; D015999:Multivariate Analysis; D016017:Odds Ratio; D011247:Pregnancy; D055815:Young Adult
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