Table 2

Sensitivity and specificity of HIV testing on sputum at various days, with and without CPC

HIV serum ELISA (Standard)


HIV on sputum

Positive

Negative

Sensitivity (95% CI)

Specificity (95% CI)


Day 1

94.7% (89.4–97.8%)

92.9% (88.9–95.8%)

Positive

125

7

Negative

7

233

Total

132

240

Without CPC

Day 4

93.2% (87.5–96.8%)

76.7% (70.9–81.9%)

Positive

123

56

Negative

9

185

Total

132

241

Day 7

92.9% (87.0–96.7%)

62.7% (55.5–69.5%)

Positive

118

72

Negative

9

121

Total

127

193

With CPC

Day 4

93.9% (87.3–97.7%)

67.8% (60.4–74.5%)

Positive

93

58

Negative

6

122

Total

99

180

Day 7

94.9% (87.5–97.9%)

49.6% (40.5–58.7%)

Positive

94

63

Negative

5

62

Total

99

125


Egwaga et al. BMC Clinical Pathology 2007 7:8   doi:10.1186/1472-6890-7-8

Open Data