Black Caribbean adults with HIV in England, Wales, and Northern Ireland: an emerging epidemic?

Table 4

Total HIV prevalence and proportion remaining undiagnosed among Caribbean born GUM attendees by probable route of transmission and year of survey (1997–2001) (UAPMP, GUM Survey)

	Year	Total tested in UAPMP GUM survey			HIV undiagnosed before clinic visit
		Number of samples tested	Number HIV-1 positive	HIV-1 prevalence (%)	Number HIV-1 positive	HIV-1 prevalence (%)	New diagnosis at that visit	Proportion of positives remaining undiagnosed after clinic visit (%)
		(a)	(b)	(b/a)	c	(c/(a − (b − c)))⁵	(d)	((c − d)/c)
Heterosexual males	1997	1095	5	0.5	5	0.5	0	100
	1998	1128	11	1.0	8	0.7	1	88
	1999	1051	9	0.9	9	0.9	4	56
	2000	1079	9	0.8	9	0.8	3	67
	2001	1333	7	0.5	6	0.5	2	67
	Total	5686	41	0.7	37	0.7	10	73
Heterosexual females	1997	826	0	0.0	0	0.0	0	–
	1998	769	3	0.4	3	0.4	1	67
	1999	820	7	0.9	7	0.9	2	71
	2000	930	7	0.8	7	0.8	4	43
	2001	1261	11	0.9	9	0.7	6	33
	Total	4606	28	0.6	26	0.6	13	50
Men who have sex with men	1997	40	5	12.5	2	5.4	0	100
	1998	40	8	20.0	7	17.9	2	71
	1999	42	5	11.9	3	7.5	3	0
	2000	42	5	11.9	1	2.6	0	100
	2001	46	15	32.6	7	18.4	2	71
	Total	210	38	18.1	20	10.4	7	65