[Discontinuation of contraceptive methods in Northeast Brazil, 1986-1991].
This paper examines the dynamics of contraceptive discontinuation in the Northeast Region of Brazil. A hierarchical discrete-time competing risks hazards model is used to derive cumulative rates of discontinuation in the first 12 months of use, by causes, according to a set of socio-demographic variables. The hierarchical approach is used not only to obtain corrected parameter estimates and standard errors but also to have a better understanding of the contraceptive discontinuation process. Despite the large number of socio-demographic variables in the model, the study shows that there is a substantial amount of unexplained variation at the level of individual women.
Leite
Iúri da Costa
Ida C
Programa de Computação Científica, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, 21045-900, Brasil. iuri@procc.fiocruz.br
D000293:Adolescent; D000328:Adult; D001938:Brazil; D003267:Contraception / Q000379:methods* / Q000639:trends; D003268:Contraception Behavior / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D008875:Middle Aged; D016016:Proportional Hazards Models; D012959:Socioeconomic Factors
Descontinuação de métodos anticoncepcionais no Nordeste do Brasil, 1986-1991.