| Interval (days) between successive tests | Probability of an interval >9 months | Probability of an interval >6 months | |||
---|---|---|---|---|---|---|
Covariates | Estimate (95% CI) | p value | Odds Ratio (95% CI) | p value | Odds Ratio (95% CI) | p value |
Intercept | 125.8 (118.8, 132.9) | < .0001 | 0.09 (0.07, 0.11) | < .0001 | 0.20 (0.16, 0.23) | < .0001 |
Region | Â | Â | Â | Â | Â | Â |
   Quebec | 20.3 (15.5, 25.0) | < .0001 | 1.72 (1.39, 2.14) | < .0001 | 1.61 (1.37, 1.89) | < .0001 |
   Ontario | 18.7 (14.3, 23.0) | < .0001 | 1.78 (1.37, 2.31) | < .0001 | 1.77 (1.47, 2.14) | < .0001 |
   BC | 0 |  | 1 |  | 1 |  |
Age (per 10 years) | -3.8 (-5.4, -2.2) | < .0001 | 0.77 (0.70, 0.85) | < .0001 | 0.77 (0.72, 0.83) | < .0001 |
Risk factor | Â | Â | Â | Â | Â | Â |
   MSM | -9.2 (-13.1, -5.4) | < .0001 | 0.62 (0.49, 0.78) | < .0001 | 0.66 (0.56, 0.77) | < .0001 |
   IDU | 16.0 (11.1, 20.9) | < .0001 | 1.68 (1.38, 2.05) | < .0001 | 1.71 (1.48, 1.99) | < .0001 |
Year of initiating cART | Â | Â | Â | Â | Â | Â |
   >2004 | -15.8 (-21.9, -9.7) | < .0001 | 0.62 (0.46, 0.83) | 0.001 | 0.74 (0.60, 0.91) | 0.005 |
   2001-2004 | -12.4 (-18.2, -6.6) | < .0001 | 0.70 (0.57, 0.86) | 0.0006 | 0.75 (0.64, 0.89) | 0.0007 |
   2000 (ref.) | 0 |  | 1 |  | 1 |  |
1st year of cART | -24.3 (-26.0, -22.6) | < .0001 | 0.15 (0.12, 0.20) | < .0001 | 0.32 (0.29, 0.36) | < .0001 |
On cART at current visit | -27.8 (-31.0, -24.6) | < .0001 | 0.34 (0.29, 0.40) | < .0001 | 0.40 (0.36, 0.45) | < .0001 |
VL < 50 copies/mL at previous test | 8.6 (6.6, 10.7) | < .0001 | 0.56 (0.48, 0.65) | < .0001 | 0.90 (0.82, 0.98) | 0.02 |
Boosted PI based cART | -9.1 (-12.2, -6.0) | < .0001 | Â | Â | 0.82 (0.71, 0.94) | 0.006 |
AIDS defining illness | -4.9 (-8.5, -1.4) | 0.007 | Â | Â | Â | Â |