Table 1.

The results of T-SPOT.TB in 20,332 patients from different age groups and specimen types

Items	Cases	Proportion (%)	Positive cases	Proportion (%)	Positive proportion (%)	Positive rate (%)
Age groups
0–6 years old	68	0.33	3	0.01	0.04	4.41
7–17 years old	410	2.02	65	0.32	0.87	15.85
18–40 years old	4247	20.89	1441	7.09	19.31	33.93
41–65 years old	9735	47.88	3494	17.18	46.81	35.89
≥ 66 years old	5872	28.88	2461	12.10	32.97	41.91
Total	20,332	100.00	7464	36.71	100.00	36.71
Specimen types
Whole blood	20,107	98.89	7361	36.20	98.61	36.60
Total	20,332	100.00	7464	36.71	100.00	36.71