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Table 8 Comparison of laboratory values at 20–24 weeks vs. 36 weeks gestation among HIV-infected women

From: Selected hematologic and biochemical measurements in African HIV-infected and uninfected pregnant women and their infants: the HIV Prevention Trials Network 024 protocol

Laboratory Parameter Number of Pairs Mean (*) of the paired differences 95% CI p value*
    Lower Upper  
Red blood cell count 106/μL 1626   0.17 0.23 < 0.0001
Hemoglobin g/dl 1623 0.5 0.4 0.6 < 0.0001
Hematocrit % 1626 1.5 1.3 1.7 < 0.0001
Platelets 103/μL 1625 -23.9 -27.5 -20.4 < 0.0001
White blood cell count 103/μL 1623 -0.1 -0.2 0.1 0.3
Lymphocytes % 1570 0.5 0.0 1.0 0.1
Monocytes % 1570 0.5 0.2 0.9 0.002
Granulocytes % 1569 -0.8 -1.6 -0.1 0.02
CD4+ T lymphocyte count cells/μL 1343 14.8 7.1 22.5 0.0002
CD8+ T lymphocyte count cells/μL 1343 8.5 -6.6 23.5 0.3
CD4+ T lymphocyte % 107 -2.3 -3.7 -0.8 0.003
CD8+ T lymphocyte % 107 -2.5 -4.6 -0.4 0.02
Total T lymphocytes as a % of all lymphocytes 74 -1.3 -3.7 1.1 0.3
  1. * For each pair, the 20–24 week laboratory value is subtracted from the 36 week value. Hence, a negative value indicates a decrease over time in the laboratory parameter.