Fig. 5From: Trend in the incidence of hepatitis A in mainland China from 2004 to 2017: a joinpoint regression analysisTrends in the yearly incidence rates of hepatitis A in four regions in mainland China during 2004–2017 based on the joinpoint regression model. *Indicates p < 0.05. Solid dots indicate joinpoints (turning point demarking significance). AAPC average annual percentage change, APC annual percentage change. A, B, C and D represent the western, central, northeastern and eastern regions, respectivelyBack to article page