Factors associated with being offered an HIV test among those who had not tested positive previously (all 1836 patients who did not know they were HIV-positive prior to the diagnosis of tuberculosis (TB))
| No HIV test offered(N = 952) | Test offered(N = 884) | Unadjusted analysis | Multivariable analysis | |||
| Odds ratio (95% CI) for being offered a test | p Value | Odds ratio (95% CI) for being offered a test | p Value | |||
| Age group (N = 1827) | ||||||
| <20 years | 151 (16.0%) | 57 (6.5%) | 0.29 (0.21 to 0.41) | <0.0001 | 0.25 (0.17 to 0.38) | <0.0001 |
| 20–29 years | 250 (26.5%) | 322 (36.5%) | Ref | Ref | ||
| 30–39 years | 177 (18.7%) | 290 (32.9%) | 1.27 (0.99 to 1.63) | 1.27 (0.94 to 1.71) | ||
| 40–49 years | 113 (12.0%) | 97 (11.0%) | 0.67 (0.49 to 0.92) | 0.72 (0.50 to 1.05) | ||
| 50–59 years | 106 (11.2%) | 62 (7.0%) | 0.45 (0.32 to 0.65) | 0.49 (0.32 to 0.74) | ||
| ⩾60 years | 148 (15.7%) | 54 (6.1%) | 0.28 (0.20 to 0.40) | 0.35 (0.23 to 0.53) | ||
| Gender (N = 1808) | ||||||
| Male | 509 (54.3%) | 503 (57.8%) | Ref | 0.13 | Ref | 0.36 |
| Female | 429 (45.7%) | 367 (42.2%) | 0.87 (0.72 to 1.04) | 0.90 (0.71 to 1.13) | ||
| Ethnic group (N = 1836) | ||||||
| White | 165 (17.3%) | 121 (13.7%) | 1.28 (0.96 to 1.71) | <0.0001 | 1.34 (0.90 to 1.98) | <0.0001 |
| Black African | 250 (26.3%) | 418 (47.3%) | 2.92 (2.33 to 3.66) | 2.76 (2.08 to 3.67) | ||
| Chinese/Far East | 46 (4.8%) | 36 (4.1%) | 1.37 (0.86 to 2.18) | 1.15 (0.69 to 1.94) | ||
| ISBP | 395 (41.5%) | 226 (25.6%) | Ref | Ref | ||
| Other/unknown | 96 (10.1%) | 83 (9.4%) | 1.51 (1.08 to 2.11) | 1.61 (1.06 to 2.43) | ||
| Time since arrival in UK (N = 1629) | ||||||
| UK-born | 213 (25.7%) | 152 (19.0%) | Ref | 0.001 | Ref | 0.04 |
| Non-UK-born | 615 (74.3%) | 649 (81.0%) | 1.48 (1.17 to 1.87) | 1.43 (1.01 to 2.02) | ||
| Level of English reading (N = 1681) | ||||||
| None | 177 (21.0%) | 105 (12.5%) | Ref | <0.0001 | Ref | 0.005 |
| Basic | 157 (18.7%) | 154 (18.4%) | 1.65 (1.19 to 2.30) | 1.33 (0.88 to 2.02) | ||
| Good | 508 (60.3%) | 580 (69.1%) | 1.92 (1.47 to 2.52) | 2.03 (1.37 to 3.02) | ||
| Interpreting required (N = 1836) | ||||||
| No | 823 (86.5%) | 794 (89.8%) | Ref | 0.03 | Ref | 0.96 |
| Yes | 129 (13.6%) | 90 (10.2%) | 0.72 (0.54 to 0.96) | 0.99 (0.64 to 1.53) | ||
| TB classification | ||||||
| PTB smear positive (N = 1836) | 143 (15.0%) | 221 (25.0%) | 1.89 (1.49 to 2.38) | <0.0001 | 1.45 (1.08 to 1.96) | 0.01 |
| Extrapulmonary TB (N = 1836) | 424 (44.5%) | 358 (40.5%) | 0.85 (0.70 to 1.02) | 0.08 | 1.02 (0.79 to 1.32) | 0.86 |
| Previous TB (N = 1836) | 90 (9.5%) | 95 (10.8%) | 1.15 (0.85 to 1.56) | 0.36 | 1.11 (0.76 to 1.60) | 0.60 |
| Risk groups* (N = 1836) | ||||||
| No risk factors | 795 (83.5%) | 688 (77.8%) | Ref | 0.002 | Ref | 0.31 |
| ⩾1 risk factor | 157 (16.5%) | 196 (22.2%) | 1.44 (1.14 to 1.82) | 1.17 (0.86 to 1.58) | ||
A test for an interaction between gender and ethnicity provides a p value of 0.38 indicating no interaction.
*Risk factors for TB: alcohol abuse, homeless, prison history, intravenous drug use, other drug use, mental health issues.
ISBP, patients from India, Sri Lanka, Bangladesh or Pakistan; PTB, pulmonary tuberculosis.