Chest Radiographs for Pediatric TB Diagnosis: Interrater Agreement and Utility

Table 3

Sensitivity and specificity: culture confirmed TB versus abnormal likely TB diagnosis on radiograph.

Reader/rater	Culture results		Sensitivity (95% CI)	Specificity (95% CI)	Positive predictive values*	Negative predictive values*
	+ve ()	−ve ()
Clinician
Positive	5	126	62.5% (24.5%–91.5%)	81.6% (78.4%–84.4%)	3.8% (1.41%–9.13%)	99.5% (98.3%–99.9%)
Negative	3	557
Medical officer
Positive	6	185	75.0% (34.9%–96.8%)	72.9% (69.4%–76.2%)	3.14% (1.28%–7.03%)	99.6% (98.4%–99.9%)
Negative	2	498
Radiologist					3.96% (1.23%–10.0%)	99.3% (98.1–99.8%)
Positive	4	101	50.0% (15.7%–84.3%)	85.2% (82.3%–87.8%)
Negative	4	582
Pulmonologist
Negative	4	110	50.0% (15.7%–84.3%)	83.9% (80.9%–86.6%)	3.5% (1.13%–9.27%)	99.5% (98.1%–99.8%)
Positive	4	573

*Disease incidence 1.12% (0.54–2.36).