PPIB and hepatitis B virus infection: A total of 681 participants were reactive either with hepatitis B or C. One hundred and thirty three (3.17%) were hepatitis B reactive and 548 (13.0%) were diagnosed with hepatitis C. The proportion of hepatitis B reactive cases was fairly similar across different age categories; however the frequency of hepatitis C reactive cases was significantly higher among individuals of ages between 41 to 50 years compared to the individuals of age 21–30 years (p-value < 0.001) (Figure 1).