Table 2.
Immunological outcome following combination antiretroviral therapy according to the rapid progressors status from linear mixed-effects model in the univariate and multivariate analyses.
Months from cART initiation | Unadjusted analyses | Adjusted analyses | ||||||
Model 1a | Model 1 + postestimation adjustment procedureb | |||||||
Mean (95% CI) increase in CD4+ T-cell count per month (square root scale) | Difference (95% CI) in mean increase in CD4+ T-cell count per month (square root scale) | P value | Difference (95% CI) in mean increase in CD4+ T-cell count per month (square root scale) | P value | Difference (95% CI) in mean increase in CD4+ T-cell count per month (square root scale) | P value | ||
Nonrapid progressors | Rapid progressors | Rapid vs. nonrapid progressors | ||||||
0–1 | 2.94 (2.84; 3.05) | 4.55 (4.17; 4.92) | 1.60 (1.21; 1.99) | <0.001 | 1.34 (0.95; 1.72) | <0.001 | 1.82 (1.61; 2.04) | <0.001 |
1–18 | 0.17 (0.16; 0.17) | 0.20 (0.17; 0.22) | 0.03 (0.004; 0.06) | 0.024 | 0.03 (−0.001; 0.05) | 0.063 | −0.05 (−0.06; −0.03) | <0.001 |
18–60 | 0.04 (0.03; 0.04) | 0.07 (0.06; 0.09) | 0.04 (0.02; 0.05) | <0.001 | 0.04 (0.02; 0.06) | <0.001 | −0.003 (−0.01; 0.01) | 0.62 |
CI, confidence interval; cART, combination antiretroviral therapy.
aFrom an initial piecewise linear mixed model including rapid progressors status, sex, age at cART initiation, risk group (MSM, sex between men and women, IDUs), geographical origin (migrants from sub-Saharan Africa, non-sub-Saharan Africa, unknown) used as a proxy of subtype and log10 HIV-RNA levels at cART initiation.
bAfter the postestimation adjustment procedure to provide an estimate of the difference for patients with the same underlying CD4+ T-cell count at cART initiation.