TLC Sensitivity(%) Specificity(%) PPV(%) NPV (%)
800 31.2 100 100 81
900 33.8 98 86.2 81.4
1000 39 96.5 78.9 82.3
1100 45.5 95.1 76.1 93.7
1200 54.5 91.6 68.9 85.5
1300 63.6 87.6 63.6 87.6
1400 70.1 81.4 56.2 88.9
1500 77.9 71.7 48.4 90.5
1600 77.9 65.9 43.8 89.8
1700 84.4 61.1 42.5 92
1800 84.4 58 40.6 91.6
1900 87 49.6 37 91.8
2000 88.3 44.7 35.2 91.8
Table 1: Combine Sensitivity, Specificity, Positive Predictive Value (PPV) And Negative Predictive Value (NPV) Of TLC Counts For Absolute CD4+ T Cell Count <200 Cells/mm3.
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