Factors associated with ever being tested for GC/CT
| N (%) | Univariable | p Value | Multivariable | |
| HR (95% CI) of ever-being tested | AHR (95% CI) of ever-being tested | |||
| Time period of enrollment | ||||
| 1999 to June 2003 | 819 (73.8) | 1.00 (ref) | – | 1.00 (ref) |
| July 2003–2007 | 291 (26.2) | 2.65 (2.11 to 3.33) | <0.001 | 2.70 (2.15 to 3.40) |
| Mean visits/year | ||||
| <4 | 389 (35.1) | 1.00 (ref) | – | 1.00 (ref) |
| ≥4 | 721 (65.0) | 1.51 (1.23 to 1.84) | <0.001 | 1.55 (1.27 to 1.91) |
| Age, y | ||||
| Median (IQR) | 41 (35-46) | – | – | – |
| 18–29 | 105 (9.5) | 2.01 (1.36 to 2.97) | <0.001 | 2.42 (1.63 to 3.59) |
| 30–39 | 372 (33.5) | 1.13 (0.80 to 1.57) | 0.49 | 1.39 (0.99 to 1.95) |
| 40–49 | 465 (41.9) | 1.37 (0.99 to 1.90) | 0.05 | 1.53 (1.11 to 2.12) |
| ≥50 | 168 (15.1) | 1.00 (ref) | – | 1.00 (ref) |
| Race/ethnicity | ||||
| African-American | 861 (77.6) | 1.31 (1.02 to 1.67) | 0.03 | 1.31 (1.03 to 1.67) |
| White | 212 (19.1) | 1.00 (ref) | – | 1.00 (ref) |
| Other | 37 (3.3) | * | – | * |
| HIV risk factor HET† | ||||
| Yes | 473 (42.6) | 1.09 (0.90 to 1.32) | 0.37 | – |
| No | 637 (57.4) | 1.00 (ref) | – | – |
| HIV risk factor IDU† | ||||
| Yes | 453 (40.8) | 0.93 (0.76 to 1.13) | 0.45 | – |
| No | 657 (59.2) | 1.00 (ref) | – | – |
| HIV risk factor MSM† | ||||
| Yes | 368 (33.2) | 1.11 (0.91 to 1.36) | 0.31 | – |
| No | 742 (66.9) | 1.00 (ref) | – | – |
| Enrollment CD4 count | ||||
| <200 cells/mm3 | 476 (42.9) | 1.00 (ref) | – | – |
| ≥200 | 634 (57.1) | 0.96 (0.79 to 1.16) | 0.66 | – |
| Enrollment HIV RNA | ||||
| <1000 copies/ml | 256 (23.1) | 1.00 (Ref) | – | – |
| 1000–99 999 | 528 (47.6) | 1.01 (0.79 to 1.30) | 0.91 | – |
| ≥100 000 | 326 (29.4) | 1.13 (0.87 to 1.48) | 0.36 | – |
| Initiated HAART | ||||
| Ever | 927 (83.5) | 1.08 (0.82 to 1.43) | 0.58 | – |
| Never | 183 (16.5) | 1.00 (ref) | – | – |
Values expressed as number (per cent) unless otherwise noted. Enrollment HIV RNA was missing for nine men.
↵* The racial category ‘other’ was combined with ‘white’ for univariable and multivariable Cox regression analysis.
↵† Reporting more than one HIV risk factor was allowed.
AHR, adjusted HR; CT, Chlamydia trachomatis; GC, Neisseria gonorrhoeae; IDU, injection drug user; IQR, interquartile range; HAART, highly active antiretroviral therapy; HET, heterosexual transmission risk; MSM, men who have sex with men; ref, reference.