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. 2014 Feb 13;7:10.3402/gha.v7.23105. doi: 10.3402/gha.v7.23105

Table 4.

Distribution of scoring points among 302* HIV-positive patients with TB, and performance for identification of patients with <100 CD4 cells/mm3

Score CD4 < 100 (n) CD4 100–350 (n) CD4 > 350 (n) Sensitivity (%) Specificity (%) Positive predictive value (PPV) (%) Negative predictive value (NPV) (%)
0 1 10 9 100 8 25 95
1 3 17 18 99 24 27 93
2 11 31 15 95 44 30 87
3 10 26 11 81 61 33 85
4 5 17 4 68 70 37 84
5 3 12 5 61 78 41 84
6 11 15 6 57 87 47 82
7 15 10 4 43 93 53 78
>7 18 14 1 23 100 55 75
Total 77 152 73

CD4 cell values in cells/mm3.

Score cutoff rounded up to nearest integer. Sensitivity and PPV of being at threshold or above. Specificity and negative predictive value of being at threshold or below.

*

Only patients with no missing values were included in this analysis.