TABLE 1.

Anti-gp41 titers in archived and study specimens from OraQuick-reactive and OraQuick-negative HIV-infected patients

Specimen type	True positive (n = 20)		False negative (n = 4)
	gp41 titera	Fraction detectableb	gp41 titera	Fraction detectableb
Archivedc	3,976 ± 2,862	19/20 (95)	1,600 ± 1,286	3/4 (75)
Studyd	17,148 ± 12,633	20/20 (100)	<100	0/4 (0)

^aGeometric mean ± standard error of the mean.

^bNumber detected/total number (percent).

^cBy use of Mann-Whitney test (two-tailed) to compare titers and numbers detectable, P is 0.26 and 0.31, respectively.

^dBy use of Mann-Whitney test (two-tailed) to compare titers and numbers detectable, P is 0.002 and 0.00047, respectively.