Figure 2From: Infection by the hepatitis C virus in chronic renal failure patients undergoing hemodialysis in Mato Grosso state, central Brazil: a cohort studyProbability curve for seroconversion to anti-HCV as a function of time, stratified by groups of clinics (A: continuous line, B: hatched line). Log Rank (Mantel-Cox): χ2 = 59.3; p = 0.0001. Degree of freedom = 1.Back to article page