Table 2

Risk category for HIV in relation to prevalence of argyrophilic plaques

Risk factor for HIV		Age (y) mean		(SD)		Argyrophilic plaques
Risk factor for HIV		Age (y) mean		(SD)		Present	Absent	Total
Homosexual	50^2-151	(9.7)	14^2-150	22	36
Haemophiliac	47	(9.7)	5	13	18
Drug misuser	35^2-151	(3.8)	2^2-150	17	19
Uncertain			7	17	24
Total			28	69	97

↵2-150 Difference between these two rows significant at p=0.03.
↵2-151 Difference between these two rows significant at p=0.0001 (Mann-Whitney non-parametric test).