TABLE 9.

Comparison of HCV core Ag concentrations among 820 specimens, stratified by HIV infection status^a

HIV status	No. (%) of specimens	Core Ag concn (pg/ml)
		Median	IQRb
Infected	306 (37.2)	100.6c	5.1-231.6
Not infected	514 (62.5)	40.5	0-219.6

^aResults of testing for antibodies to HIV type 1 by ELISA and gel particle agglutination test or Western blot analysis.

^bInterquartile range.

^cP < 0.01 by Mann-Whitney test for results for HIV-infected specimens versus HIV-noninfected specimens.