Table 1

Demographic and behavioural characteristics of the two study samples

GUM attenders (n=836)Blood donors (n=1446)
Demographic characteristics% (No)% (No)
Sex(n=1411)
    Female48 (678)
    Male52 (733)
Sex/orientation(n=827)
    Female41 (343)
    Male heterosexual35 (291)
    Male homosexual23 (193)
Age(n=827)(n=1412)
    ≤2429 (241)15 (207)
    25–3452 (427)38 (539)
    35–4414 (116)26 (372)
    45+5 (43)21 (294)
Ethnicity(n=821)(n=1405)
    Black10 (82)4 (50)
    White85 (695)94 (1322)
    Asian4 (31)1 (20)
    Other2 (13)1 (13)
Occupation class(n=818)
    I–III77 (629)NA
    Other23 (189)NA
Marital status(n=824)(n=1406)
    Single64 (531)44 (612)
    Other36 (293)56 (794)
Lifetime sexual partners(n=777)
    1–936 (277)
    10–1925 (191)
    20–4924 (183)
    50+16 (126)
(n=1246)
    06 (78)
    1–447 (588)
    5–926 (322)
    10+21 (258)
Age at first sexual intercourse(n=817)(n=1396)
    ≤1520 (167)9 (130)
    16–1736 (291)25 (351)
    18–1926 (210)29 (399)
    20+18 (149)31 (438)
    Not yet0 (0)6 (78)