Table 6.
Univariate and multi-variate models assessing HIV testing rates among people recruited as part of the Needle Exchange Surveillance Initiative in Glasgow city, 2010–2019
| Co-variates | Na | HIV test in the last year (% of N) | Univariateb | Multi-variateb | ||
|---|---|---|---|---|---|---|
| OR (95% CI) | P value | aOR (95% CI) | P value | |||
| Time period | ||||||
| Pre-outbreak (2010–2014) | 2,304 | 610 (26%) | 0.24 (0.21–0.27) | < 0.001 | 0.21 (0.17–0.24) | < 0.001 |
| Early outbreak (2015–2016) | 700 | 275 (39%) | 0.42 (0.36–0.51) | < 0.001 | 0.39 (0.33–0.48) | < 0.001 |
| Ongoing outbreak (2017–2019) | 1,385 | 833 (60%) | 1 | 1 | ||
| Gender | ||||||
| Male | 3,245 | 1,266 (39%) | 1 | 1 | ||
| Female | 1,124 | 444 (40%) | 1.02 (0.88–1.17) | 0.781 | 0.96 (0.82–1.12) | 0.618 |
| Age group | ||||||
| < 35 | 1,297 | 482 (37%) | 1 | 1 | ||
| 35–45 | 2,251 | 861 (38%) | 1.05 (0.91–1.21) | 0.530 | 0.73 (0.62–0.85) | < 0.001 |
| 46 + | 835 | 373 (45%) | 1.36 (1.13–1.64) | 0.001 | 0.65 (0.53–0.80) | < 0.001 |
| Methadone prescribing | ||||||
| Never prescribed | 342 | 89 (26%) | 1 | 1 | ||
| In the last 6 months | 3,545 | 1,436 (41%) | 1.93 (1.51–2.48) | < 0.001 | 2.45 (1.89–3.18) | < 0.001 |
| In the past but not the last 6 months | 482 | 184 (38%) | 1.76 (1.29–2.37) | < 0.001 | 2.40 (1.76–3.28) | < 0.001 |
OR odds ratio, aOR adjusted odds ratio
aMissing data has been excluded
bMulti-level framework to adjust for across survey duplicates