Table 1.

The positive detection rate of HEV71- and CVA16-IgM antibodies by the IgM-capture ELISA.

	No. of positive/No. of sera				Positive predictive value (95% confidence interval)	Negative predictive value (95% confidence interval)
IgM-capture ELISAs	HEV71 infected sera	CVA16 infected sera	Other enterovirus infected sera	Respiratory virus infectious sera
HEV71-IgM	233/249	38/122	14/49	2/105	81.3% (76.9-85.1%)	91.0% (87.5-93.8%)
CVA16 -IgM	58/211	91/125	16/48	3/105	54.4% (48.3-60.9%)	88.6% (85.1-91.4%)

Note: The data were collected during the first 90 days of disease.