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Table 1 Matched case–control study

From: Derivation and validation of an accurate estimation of CD4 counts from the absolute lymphocyte count in virologically suppressed and immunologically reconstituted HIV infected adults

  Case (n = 50) Controls (n = 100) Odds Ratio, p-value
Baseline CD4% (mean) 19 19 NSa
Days from baseline CD4% to estimated CD4 (mean) 393 393 NSa
Mean age (years) 45 47 NSa
Proportion >50 years 34 % 38 % 0.85 (0.46–1.55), NSb
Sex (male) 90 % 90 % 1 (0.35–2.84), NSb
History of AIDS defining illness or trough CD4 < 200 62 % 66 % 0.83 (0.44–1.57), NSb
First line ART 84 % 88 % 0.71 (0.28–1.73), NSb
Days ART (mean) 795 1004 NSa
<180 days 38 % 21 % 2.30 (1.09–4.87), 0.032b
<360 days 50 % 32 % 2.12 (1.06–4.26), 0.035b
<720 days 62 % 45 % 1.99 (1.00–3.99), 0.058b
ART switch (not due to virologic failure) 18 % 8 % 2.52 (0.91–7.01), 0.1 b
Illness 16 % 0 % 0.0001 b
  1. astudents t test, bChi square, Fischer’s exact