Table 1.
Predictor | Effect on mean CD4 count at year 10 (95% CI) | |||
---|---|---|---|---|
Separate univariate models | Model with both CD8 activation and naïve CD4 percentage | Model with both factors and interaction | ||
CD8 activationa (per 5 percentage points higher) | −34 (−51, −18) | −28 (−44, −12) | Naïve CD4%=21% | −30 (−48, −13) |
Naïve CD4%=32% | −28 (−44, −12) | |||
Naïve CD4%=41% | −26 (−44, −8) | |||
Naïve CD4%a (per 5 percentage points higher) | 28 (16, 41) | 24 (12, 36) | CD8 activation=12% | 22 (7, 37) |
CD8 activation=18.5% | 23 (10, 36) | |||
CD8 activation=27% | 25 (12, 38) |
Each subject’s average level, measured primarily during years 3–5, was used as the predictor.