| Unadjusted change in CD4 | Adjusted change in CD4a | ||
---|---|---|---|---|
Average CD4 | 95% CI | Average CD4 | 95% CI | |
Constant | 306 | 283–330 | 282 | 218–345 |
Age ≥ 50 | 52 | − 38–142 | 37 | − 58–132 |
Time | ||||
 6 months | 128 | 108–148 | 146 | 124–166 |
 12 months | 156 | 135–178 | 174 | 150–199 |
 18 months | 176 | 153–199 | 192 | 166–217 |
 24 months | 188 | 163–214 | 203 | 174–231 |
 30 months | 217 | 185–248 | 230 | 197–263 |
 36 months | 195 | 162–228 | 213 | 179–247 |
 42 months | 199 | 161–237 | 289 | 225–353 |
Age*visit interaction | ||||
 Age ≥ 50* 6 months | − 20 | − 66–26 | − 3 | − 62–55 |
 Age ≥ 50* 12 months | − 48 | − 101–4 | − 29 | − 96–38 |
 Age ≥ 50* 18 months | − 35 | − 100–29 | − 22 | − 95–51 |
 Age ≥ 50* 24 months | 47 | − 41–135 | 66 | − 28–162 |
 Age ≥ 50* 30 months | − 38 | − 129–54 | − 11 | − 106–84 |
 Age ≥ 50* 36 months | − 71 | − 182–40 | − 52 | − 159–55 |
 Age ≥ 50* 42 months | − 147 | − 263–31 | − 130 | − 377–116 |