Table 1. Comparing the diagnostic performance of screening approaches for smear positive or bacteriologically-confirmed tuberculosis, Rwanda 2012.

	Number of positive	Odds Ratio	SE	p-value	[95% CI]
Positivity of combined field microscopy
Symptom screening only (n = 2,092)	4	1.00
CXR screening only (n = 2,110)	13	3.23	1.85	0.040	1.05	9.94
Symptom and CXR screening (n = 545)	12	11.75	6.80	0.000	3.78	36.58
Bacteriologically confirmed TB
Symptom screening only (n = 2,092)	4	1.00
CXR screening only (n = 2,110)	20	4.99	2.74	0.003	1.70	14.64
Symptom and CXR screening (n = 545)	14	13.76	7.83	0.000	4.51	41.98

SE, standard error; CI, confidence interval; CXR, chest X-ray; TB, Tuberculosis