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

Table 2 Hepatitis B cases reported to the National Notifiable Disease Reporting System by original and revised* case classification from six project hospitals in Fujian, Hainan, and Gansu Provinces, China, 2015

	Cases	Acute Hepatitis B				Chronic Hepatitis B
	Cases	Reported	Revised	% Accurate	χ², p-value	Reported	Revised	% Accurate	χ², p-value
Province					< 0.001				0.18
Fujian	881	12	1	8.3		869	538	61.9
Hainan	267	102	17	16.7		165	93	56.4
Gansu	272	238	5	2.10		34	17	50.0
Hospital Grade					0.004				0.41
2	406	223	21	9.4		183	106	57.9
3	1014	129	2	1.6		885	542	61.3
Gender					1.0				< 0.001
Male	991	218	14	6.4		773	498	64.4
Female	429	134	9	6.7		295	150	50.9
Age group(year)					0.33^#				0.007
0–24	130	45	5	11.1		85	60	70.6
25–39	417	91	6	6.6		326	206	63.2
40–59	610	144	10	6.9		466	285	61.2
≥ 60	263	72	2	2.8		191	97	50.8
HBV related departments					< 0.001				< 0.001
Yes	819	120	17	14.2		699	530	75.8
No	601	232	6	2.6		369	118	32.0
Primary discharge diagnosis					< 0.001				< 0.001
Yes	512	62	18	29.0		450	438	97.3
No	908	290	5	1.7		618	210	34.0
Total	1420	352	23	6.5		1068	648	60.7

*Revised case-classification based on information abstracted from patients’ medical record
^# Fisher’s exact tests

ISSN: 1471-2334