Table 3

Mean level and annual change in CD4+ and CD8+ lymphocyte counts before and after 4/96. 95% Confidence intervals are given in parentheses

Self reported AIDS at baselineNo self reported AIDS at baseline
*Represents post 4/96 slope – pre 4/96 slope.
CD4+ lymphocyte count (cells/mm3)
    Mean level in 4/96310.2 (288.2 to 332.1)404.8 (390.3 to 419.3)
    Slope per year 10/94–4/96−19.4 (−32.9 to −5.9)−13.0 (−22.2 to −3.7)
    Slope per year 4/96–9/997.2 (2.7 to 11.7)1.1 (−2.0 to 4.1)
    Difference of slopes*26.6 (10.3 to 42.9)14.1 (4.1 to 24.1)
CD8+ lymphocyte count (cells/mm3)
    Mean level in 4/96863.2 (813.0 to 913.4)940.5 (913.0 to 967.9)
    Slope per year 10/94–4/966.5 (−29.2 to 42.3)37.3 (17.1 to 57.4)
    Slope per year 4/96–9/99−12.5 (−24.6 to −0.6)−22.1 (−28.8 to −15.5)
    Difference of slopes*−19.1 (−62.3 to 24.1)−59.4 (−83.8 to −35.0)