5. Indirect comparisons of sensitivity and specificity of chest CT, chest X‐ray and ultrasound.

Indirect comparisons of sensitivity and specificity of chest CT, chest X‐ray and ultrasound
			P value (comparison of sensitivities) P value (comparisons of specificities)
			Chest CT	Chest X‐ray	Ultrasound of the lungs
		Studies (participants)	41 (16,133)	9 (3694)	5 (446)
	Studies (participants)	Sensitivity (95% CI) Specificity (95% CI)	87.9% (84.6 to 90.6) 80.0% (74.9 to 84.3)	80.6% (69.1 to 88.6) 71.5% (59.8 to 80.8)	86.4% (72.7 to 93.9) 54.6% (35.3 to 72.6)
Chest CT	41 (16,133)	87.9% (84.6 to 90.6) 80.0% (74.9 to 84.3)	‐	‐	‐
Chest CT/X‐ray	9 (3694)	80.6% (69.1 to 88.6) 71.5% (59.8 to 80.8)	P = 0.10 P = 0.12	‐	‐
Ultrasound of the lungs	5 (446)	86.4% (72.7 to 93.9) 54.6% (35.3 to 72.6)	P = 0.77 P = 0.0052	P = 0.43 P = 0.13	‐
CI: confidence interval;CT: computed tomography