|  | Model 1a |  | Model 2a | ||
---|---|---|---|---|---|---|
 | Odds ratio | 95 % CI | p-value | Odds ratio | 95 % CI | p-value |
Age (years) | 1.03 | 1.02–1.04 | <0.001 | 1.04 | 1.04–1.03 | <0.001 |
Gender (0 = F,1 = M) | 1.18 | 0.97–1.45 | 0.10 | 1.42 | 1.09–1.86 | 0.01 |
Residenceb | Â | Â | Â | Â | Â | Â |
 Remotec | 1.00 |  |  |  |  |  |
 Town Campd | 1.04 | 0.80–1.36 | 0.77 |  |  |  |
 Urbane | 0.59 | 0.43–0.80 | 0.001 |  |  |  |
 N/H | 0.56 | 0.32–0.98 | 0.04 |  |  |  |
 Tennant Creek | 0.17 | 0.09–0.31 | <0.001 |  |  |  |
 Outside regionf | 0.65 | 0.29–1.45 | 0.29 |  |  |  |
Residence regiong | Â | Â | Â | Â | Â | Â |
 North |  |  |  | 1.00 |  |  |
 East |  |  |  | 1.53 | 0.8–2.8 | 0.17 |
 South |  |  |  | 10.7 | 7.3–15.5 | <0.001 |
 West |  |  |  | 4.4 | 3.1–6.2 | <0.001 |
STIh | 1.93 | 1.53–2.45 | <0.001 | 1.42 | 1.04–1.97 | 0.036 |
Patient Group STI interactioni | Â | |||||
Group 1 (n = 1431) | 1.00 |  |  | 1.00 |  |  |
Group 2 (n = 334) | 0.80 | 0.60–1.05 | 0.11 | 0.99 | 0.71–1.39 | 0.95 |
Group 3 (n = 124) | 0.89 | 0.60–1.34 | 0.59 | 0.71 | 0.39–1.28 | 0.26 |