Table 2. Clonorchis sinensis infection by age and sex.

Age	Sex	No. of egg-positive subjects	Worm positive cases (%)
40–49	Male	7	4 (57.1)
	Female	3	1 (33.3)
	Subtotal	10	5 (50.0)
50–59	Male	10	5 (50.0)
	Female	2	1 (50.0)
	Subtotal	12	6 (50.0)
60–69	Male	10	3 (33.3)
	Female	10	1 (10.0)
	Subtotal	20	4 (20.0)
70–79	Male	5	2 (40.0)
	Female	3	0 (0.0)
	Subtotal	8	2 (25.0)
Total	Male	32	14 (43.8)
	Female	18	3 (16.7)
	Subtotal	50	17 (34.0)