Trend in cases of gestational and congenital syphilis in Minas Gerais, Brazil, 2009-2019: an ecological study

Abstract

Objective: To analyze the trend of notifications of gestational and congenital syphilis in Minas Gerais, Brazil, from 2009 to 2019. Methods: Ecological time series study considering the unit of analysis the state of Minas Gerais, based on data reported in the Health Information System Notification. The Prais-Winsten autoregressive model was used to verify the trend. Results: 20,348 cases of gestational syphilis and 11,173 cases of congenital syphilis were reported. The average percentage of annual increase was 36.7% (95%CI 32.5;41.0), for gestational syphilis incidence rates, and 32.8% (95%CI 28.0;37.8), for congenital syphilis (p<0.001). Conclusion: The temporal trend analysis showed that the incidence rates of gestational and congenital syphilis showed significant increasing trends, which may be related to inadequate treatment or failure to treat syphilis during the gestational period.