Hepatitis E virus: Western Cape, South Africa

Table 1 Data (%) for total population overall and age group seroprevalence and 95%CI in 3 racial groups in Western Cape, South Africa

Age group (yr)	Total population (n = 1161)		Black African population (n = 389)		MA/Coloured population (n = 452)		White population (n = 320)
	IgG (n)	HEV Seroprevalence % (95%CI)	IgG (n)	HEV Seroprevalence % (95%CI)	IgG (n)	HEV Seroprevalence % (95%CI)	IgG (n)	HEV Seroprevalence % (95%CI)
0-4	6/72	8.3 (3.9-17.0)	2/36	5.6 (1.5-18.1)	4/31	12.9 (5.1-28.9)	0/51	0 (0-43.4)
5-9	6/78	7.7 (3.6-15.8)	1/26	3.8 (0.7-18.9)	5/45	11.1 (4.8-23.5)	0/71	0 (0-35.4)
10-14	7/72	9.7 (4.8-18.7)	3/27	11.1 (3.9-28.1)	4/42	9.5 (3.8-22.1)	0/31	0 (0-56.2)
15-19	8/95	8.4 (4.3-15.7)	4/23	17.4 (7.0-37.1)	4/42	9.5 (3.8-22.1)	0/301	0 (0-11.4)
20-29	17/179	9.5 (6.0-14.7)	2/62	3.2 (0.9-11.0)	9/54	16.7 (9.0-28.7)	6/63	9.5 (4.4-19.3)
30-39	42/142	29.6 (22.7-37.5)	14/52	26.9 (16.8-40.3)	17/45	37.8 (25.1-52.4)	11/45	24.4 (14.2-38.7)
40-49	67/153	43.8 (36.2-51.7)	22/62	35.5 (24.7-47.9)	22/49	44.9 (31.9-58.7)	23/42	54.8 (39.9-68.8)
50-59	62/126	49.2 (40.6-57.8)	15/36	41.7 (27.1-57.8)	26/47	55.3 (41.2-68.6)	21/43	48.8 (34.6-63.2)
60-69	67/152	44.1 (36.4-52.0)	24/43	55.8 (41.1-69.6)	19/58	32.8 (22.1-45.6)	24/51	47.1 (34.1-60.5)
70-79	34/68	50.0 (38.4-61.6)	6/17	35.3 (17.3-58.7)	16/29	55.2 (37.5-71.6)	12/22	54.5 (34.7-73.1)
80+	8/24	33.3 (18.0-53.3)	1/5	20.0 (3.6-62.4)	2/10	20.0 (5.7-51.0)	5/9	55.6 (26.7-81.1)
Total	324/1161	27.9 (25.3-30.5)	94/389	24.2 (20.2-28.7)	128/452	28.3 (24.4-32.6)	102/320	31.9 (27.0-37.2)

Overall seroprevalence was 27.9% and age adjusted seroprevalence was 21.9%.

¹Numbers too small to calculate a meaningful confidence interval. HEV: Hepatitis E virus.