Table 2.

 Clinical symptoms and a potential source of infection of HAV in Beijing

	N	Clinical symptoms (%)	Potential source of infection
			Raw vegetable or fruit consumption (%)	Seafood consumption (%)	Nonboiled water (%)	Travelling (%)	Unknown (%)
Total	90	80 (88.9)	37 (41.1)	52 (57.8)	1 (1.1)	8 (8.9)	24 (26.7)
Gender
Men	52	47 (90.4)	20 (38.5)	37 (71.2)	1 (1.9)	7 (13.5)	12 (23.1)
Women	38	33 (86.8)	17 (44.7)	15 (39.3)	0 (0.0)	1 (2.6)	12 (31.6)
Age
20	3	3 (100.0)	3(100.0)	1 (33.3)	0 (0.0)	0 (0.0)	0 (0.0)
25∼	1	1 (100.0)	1(100.0)	1 (100.0)	0 (0.0)	0 (0.0)	0 (0.0)
30∼	9	8 (88.9)	4(44.4)	8 (88.9)	0 (0.0)	2 (22.2)	1 (11.1)
35∼	11	9(81.8)	3(27.3)	8 (72.7)	0 (0.0)	1 (9.1)	1 (9.1)
40∼	12	12(100.0)	5 (41.7)	9 (75.0)	1(8.3)	4 (33.3)	3 (25.0)
4∼	8	7 (87.5)	4 (50.0)	3 (37.5)	0 (0.0)	0 (0.0)	1 (12.5)
50∼	12	9 (75.0)	6 (50.0)	7 (58.3)	0 (0.0)	0 (0.0)	4 (33.3)
55∼	7	7 (100.0)	2 (28.6)	5 (71.4)	0 (0.0)	0 (0.0)	1 (14.3)
60∼	4	4 (100.0)	1 (25.0)	2 (50.0)	0 (0.0)	0 (0.0)	2 (50.0)
65∼	4	4 (100.0)	3 (75.0)	1 (25.0)	0 (0.0)	0 (0.0)	1 (25.0)
70∼	5	5 (100.0)	1 (20.0)	0 (0.0)	0 (0.0)	0 (0.0)	4 (80.0)
75∼	7	5 (71.4)	3 (42.9)	3 (42.86)	0 (0.00)	1 (14.3)	3 (42.9)
80∼	4	3 (75.0)	0 (0.0)	1 (25.0)	0 (0.0)	0 (0.0)	3 (75.0)
85∼	3	3 (100.0)	1 (33.3)	3 (100.0)	0 (0.0)	0 (0.0)	0 (0.0)

The data originated from clinical symptoms and potential sources of infection questionnaire