Table 1

 Response rates, demographics and HIV antibody prevalence by city of recruitment*

City of recruitmentSignificance
LondonBrightonManchesterχ2 (2df)p Value
Adj, adjusted; df, degrees of freedom; unadj, unadjusted.
Values are represented as % (n/n) unless otherwise specified.
*Showing OR and adjusted OR for outcomes by city (adjusting for age, education, ethnicity and employment status).
†Using Kruskal–Wallis test.
Response63 (1541/2450)66 (387/596)70 (383/544)11.03<0.01
Median (range) age, years33 (17–78)34 (17–73)27 (17–77)82.93<0.001†
White ethnicity85 (1222/1436)95 (356/373)96 (335/348)
Unadj OR (95% CI)13.67 (2.22 to 6.09)4.51 (2.55 to 8.00)48.25<0.001
Educated after 16 years88 (1265/1436)77 (288/373)83 (286/346)
Unadj OR (95% CI)10.46 (0.34 to 0.61)0.64 (0.46 to 0.89)29.53<0.001
Employed89 (1278/1434)79 (219/368)87 (304/348)
Unadj OR (95% CI)10.46 (0.34 to 0.62)0.84 (0.59 to 1.21)25.48<0.001
HIV antibody positive12.3 (177/1436)13.7 (51/373)8.6 (30/348)
Unadj OR (95% CI)11.13 (0.81 to 1.57)0.67 (0.45 to 1.01)4.850.09
Adj OR (95% CI)10.93 (0.65 to 1.33)0.69 (0.45 to 1.05)3.010.22
HIV-positive men undiagnosed44.1 (78/177)33.3 (17/51)36.7 (11/30)
Unadj OR (95% CI)10.63 (0.33 to 1.22)0.73 (0.33 to 1.64)2.140.34
Adj OR (95% CI)11.04 (0.50 to 2.13)0.72 (0.30 to 1.71)0.620.73