OBJECTIVE: To analyze factors associated with relapse of leprosy. METHODS: Retrospective case-control study including 159 patients older than 15 diagnosed with leprosy attending reference centers for leprosy in five municipalities in the state of Mato Grosso, central-western Brazil. Cases (n=53) were patients with relapsed leprosy diagnosed from 2005 to 2007 who were compared with controls (n=106) matching for gender and operational classification who were considered cured after treatment in 2005. Data was obtained from the local Notifiable Diseases Database, medical […]