Effect of age on computed tomography findings: Specificity and sensitivity in coronavirus disease 2019 infection

Table 1 Diagnostic accuracy measures of the computerized tomography according to age

Age		CT	RT-PCR		Sensitivity, % (95%CI)	Specificity, % (95%CI)
			COVID-19 negative	COVID-19 positive
Age categories	0-9	Negative	3	8	11.11 (0.28-48.25)	23.08 (5.04-53.81)
		Positive	10	1
	10-19	Negative	0	3	50.00 (11.81-88.19)	0.00 (0.00-28.49)
		Positive	11	3
	20-29	Negative	10	9	60.87 (38.54-80.29)	25.64 (13.04-42.13)
		Positive	29	14
	30-39	Negative	5	10	66.67 (47.19-82.71)	18.52 (6.30-38.08)
		Positive	22	20
	40-49	Negative	9	2	91.30 (71.96-98.93)	32.14 (15.88-52.35)
		Positive	19	21
	50-59	Negative	4	3	90.32 (74.25-97.96)	13.33 (3.76-30.72)
		Positive	26	28
	60-69	Negative	3	2	92.59 (75.71-99.09)	8.82 (1.86-23.68)
		Positive	31	25
	70-79	Negative	4	3	81.25 (54.35-95.95)	11.11 (3.11-26.06)
		Positive	32	13
	80+	Negative	4	0	100.00 (79.41-100.0)	33.33 (9.92-65.11)
		Positive	8	16
Overall		Negative	42	40	77.90 (71.15-83.72)	18.26 (13.49-23.87)
		Positive	188	141

Diagnostic accuracy measures (sensitivity and specificity) were calculated for computed tomography when real-time reverse transcription PCR was gold standard. CT: Computed tomography; RT-PCR: Real-time reverse transcription PCR; COVID-19: Coronavirus disease 2019; CI: Confidence interval.