Table 3

 Prevalence of previously undiagnosed HIV*, proportion remaining undiagnosed after clinic visit and uptake of voluntary confidential testing among MSM attending 14 GUM clinics in England & Wales by region or country of birth, 1997–2002

Undiagnosed prevalence*Proportion remaining undiagnosed after clinic visitProportion accepting VCT
(No of HIV positive samples*/no of samples tested*)(No of HIV positive samples from individuals who could have been diagnosed at clinic visit but left clinic unaware of infection/no of HIV positive samples*)(No of samples from individuals accepting VCT/no of samples tested*)
%95% CIn/N%n/N%n/N
MSM, men who have sex with men.
*MSM with “previously undiagnosed HIV” includes samples from HIV infected MSM whose HIV infection was not diagnosed before clinic attendance, but may either have had a new diagnosis at the clinic visit or left remaining undiagnosed. It excludes men with a previously diagnosed HIV infection.
†Total includes men born in Australia and Oceania, Middle Eastern Crescent, North America, rest of Europe, and those where region of birth was not recorded.
Caribbean15.8(11.7 to 20.8)42/26545.219/4252.1138/265
Central/South America5.7(4.4 to 7.4)57/99357.933/5759.7593/993
Sub-Saharan Africa4.6(3.3 to 6.2)40/87062.554.4473/870
Asia3.7(2.4 to 5.3)27/73951.914/2756.4417/739
United Kingdom4.0(3.7 to 4.2)971/24 45260.2585/97151.912 691/24 452
Total† 4.3 (4.1 to 4.5) 1595/37 039 60.2 960/1595 52.3 19 387/37 039