[Mammogram screening for breast cancer and associated factors in the South of Brazil: a based-population survey].

The purpose of this study was to identify factors associated with annual mammogram screening in women 40 to 69 years of age in Florianópolis, Santa Catarina State, Brazil. Data were obtained from two population studies with independent samples, one with adult women and the other with elderly women, in 2009-2010. Prevalence rates for annual mammogram screening were estimated by crude and adjusted Poisson regression. Overall prevalence of annual mammograms in adult women was 43.5% (95%CI: 38.8-48.2) and was higher in women with private health insurance. In elderly women, prevalence was 38.3% (95%CI: 34.0-42.6), with the following associated factors: marital status (married/with partner), schooling (> 5 years), and highest income quartile. Mammogram screening should be independent of socioeconomic status and age in order to reduce mortality from breast cancer.