Table 2

Comparison of survey respondents with non-responders

Non-responders (n=333)Survey respondents (n=751)
No (%)No (%)p Value for difference*
2 test for association unless stated otherwise.
†67 questionnaires could not be linked to patient identities, and are excluded from this comparison.
t test.
Male sex198 (59.6)341 (45.4)<0.001
Mean age (SD)‡33.7 (14.4)29.7 (9.7)<0.001
Self reported ethnic group
    White76 (22.9)197 (26.2)
    Afro-Caribbean68 (20.5)134 (17.8)
    African20 (6.0)58 (7.7)
    Asian32 (9.6)38 (5.1)
    Oriental00
    Middle Eastern2 (0.6)4 (0.5)
    Other38 (11.5)82 (10.9)
    Not known96 (28.9)239 (31.8)0.08
Homosexual orientation (males)5 (2.5)11 (3.2)0.64
Acute STI diagnosed this episode83 (25.0)222 (29.5%)0.13