Fig. 1

The rate of HBsAg or anti-HCV antibody-positive patients who were notified of the results before and after the introduction of the alert system. a The rate of HBsAg-positive patients who were notified of the positive results increased significantly after the introduction of the alert system (95% confidential interval of difference of rate = 8% ~ 46%; p = 0.0061). b The rate of anti-HCV antibody-positive patients who were notified of the results increased significantly after the introduction of the alert system (95% confidential interval of difference of rate = 15% ~ 39%; p < 0.0001)