. Author manuscript; available in PMC: 2015 Aug 20.

Published in final edited form as: Transfusion. 2013 Jul 7;53(10 0 2):2505–2511. doi: 10.1111/trf.12326

Table 1.

Hepatitis E markers in NIH volunteer blood donors.

Collection Year	No. Tested	Anti-HEV IgG⁺	Anti-HEV IgM⁺	HEV RNA⁺
2006	916	200 (21.8%) 95% CI: 19.2%–24.5%	3 (0.3%) 95% CI: −0.0%–0.7%	0 (0%)

2012	1023	164 (16.0%) 95% CI: 13.8%–18.3%	5 (0.5%) 95% CI: −0.0%–0.9%	0 (0%)
Total	1939	364 (18.8%) 95% CI: 17.0%–20.5%	8 (0.4%) 95% CI: 0.1%–0.7%	0 (0%)

CI: confidence interval.