Table 1 Distribution of the main outcome, main exposure and other covariates, stratified by sexual orientation, among patients attending the Denver Metro Health (STD) Clinic, Denver, Colorado, 2006–2008
MSM (n = 1473)MSW (n = 7835)Women (n = 5647)Total (n = 14 955)
No (%)No (%)No (%)No (%)
Main outcome
Current Ct/GC infection
    Yes247 (16.8)1669 (21.3)886 (15.7)2802 (18.7)
    No1226 (83.2)6166 (78.7)4761 (84.3)12 153 (81.3)
Main exposure
Sex with internet partner
    <4 months339 (23.0)192 (2.5)98 (1.7)629 (4.2)
    4–12 months109 (7.4)69 (0.9)33 (0.6)211 (1.4)
    >12 months145 (9.8)131 (1.7)71 (1.3)347 (2.3)
    Never880 (59.7)7443 (95.0)5445 (96.4)13 768 (92.1)
Covariates
Race/ethnicity
    Non-white528 (35.9)5137 (65.6)3683 (65.2)9348 (62.5)
    White945 (64.1)2698 (34.4)1964 (34.8)5607 (37.5)
Age
    ⩽30 years780 (53.0)5089 (64.0)4149 (73.5)10 018 (67.0)
    >30 years693 (47.0)2746 (35.0)1498 (26.5)4937 (33.0)
Number of partners in past 3 months
    >1 partner932 (63.3)3,499 (44.7)1,878 (33.3)6,309 (42.2)
    ⩽1 partner541 (36.7)4,336 (55.3)3,769 (66.7)3,769 (57.8)
History of GC
    Yes283 (19.2)804 (10.3)629 (11.1)1716 (11.5)
    No1190 (80.8)7031 (89.7)5018 (88.9)13 239 (88.5)
History of Ct
    Yes170 (11.5)1370 (17.5)1721 (30.5)3261 (21.8)
    No1303 (88.5)6465 (82.5)3926 (69.5)11 694 (78.2)
Current HIV status
    Positive126 (8.6)9 (0.1)12 (0.2)147 (1.0)
    Negative/unknown1347 (91.4)7826 (99.9)5635 (99.8)14 808 (99.0)
  • Ct, Chlamydia trachomatis; GC, Neisseria gonorrhoeae; MSM, men who have sex with men; MSW, men who have sex with women.