Table 2.
Random-Effects Meta-regression Models Estimating Trends in CD4 Count at Time of Presentation to HIV Care and Antiretroviral Therapy Initiation—Sub-Saharan Africa, 2002–2013
Model | Presentation to Care |
Initiation of Antiretroviral Therapy |
||||||
---|---|---|---|---|---|---|---|---|
Studies | β-Coefficient | 95% CI | P Value | Studies | β-Coefficient | 95% CI | P Value | |
Primary analyses | 56 | 5.84 | −10.7 to 22.4 | .48 | 71 | −1.13 | −8.4 to 6.2 | .76 |
Subanalyses | ||||||||
Opportunistic infections studies excluded | 52 | 5.39 | −11.3 to 22.1 | .52 | 69 | −0.55 | −8.0 to 6.9 | .88 |
PMTCT studies excluded | 52 | 3.81 | −14.1 to 21.7 | .67 | 68 | 0.45 | −4.8 to 5.7 | .87 |
South Africa only | 13 | 39.9 | 9.2 to 70.7 | .016 | 10 | 2.36 | −22.5 to 27.2 | .83 |
Uganda only | … | … | … | … | 11 | 4.20 | −4.0 to 12.4 | .28 |
Sensitivity analyses | ||||||||
Excluded studies >3 years | 43 | 1.38 | −18.3 to 21.1 | .89 | 41 | 5.50 | −1.6 to 12.6 | .13 |
Disaggregated by yeara | 56 | 6.52 | −7.3 to 20.4 | .35 | 71 | 3.91 | −0.7 to 8.5 | .10 |
Abbreviations: CI, confidence interval; PMTCT, prevention of mother-to-child transmission.
a Model disaggregated by year, estimated using bootstrapping to account for clustering of data within studies.