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Table 4 Characteristics of 749 incorrectly classified Hepatitis B case reports from six project hospitals in Fujian, Hainan, and Gansu Provinces, China, 2015

From: Using a hepatitis B surveillance system evaluation in Fujian, Hainan, and Gansu provinces to improve data quality and assess program effectiveness, China, 2015

Characteristics Numbers of cases Percentage (%)
Acute hepatitis case- report (n = 329) ALT abnormal, no other information 120 36.5
Ultrasound abnormalities or history of HBV 87 26.4
No HBV history or clinical/ laboratory abnormalities 45 13.7
Diagnosed as chronic HBV 41 12.5
Abnormal signs/ symptoms and ALT only 23 7.0
Abnormal signs/symptoms only 13 4.0
Chronic hepatitis case-report (n = 420) ALT abnormal, no other information 207 49.3
No clinical or diagnostic abnormalities (ultrasound performed) 79 18.8
No clinical or diagnostic abnormalities (ultrasound not performed) 51 12.1
Abnormal signs/symptoms and ALT only 51 12.1
Abnormal signs/symptoms only 17 4.1
Differs from clinical diagnosis 15 3.6