Introduction Induced abortion is the main cause of maternal death in B
razil. Question of its legalization has been the subject of frequent d
iscussion. Material and Method In order to assess the influence of the
variables affecting the opinion of women of reproductive age, a popul
ation-based systematic sample in the couty of Rio Grande (Southern Bra
zil) was examined. Results Of a total of 1,456 interviews 30% endorsed
the legalization, whatever the circunstances; this percentage was dir
ectly associated with age, schooling, family income and previous induc
ed abortion (p<0.01). Adjusted analysis using logistic regression show
ed a significant effect of schooling and previous induced abortion on
favourable opinion. Conclusion Schooling and previous induced abortion
were the main determinants of women's favorable opinions regarding ab
ortion legalization.