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Table 4 Comparative results of the numbers of spots and composition in three subgroups

From: Clinical effect of T-SPOT.TB test for the diagnosis of tuberculosis

Spot typesPTBPETBEPTBχ2/PZ/P
ESAT-6 unique positive
 Cases8927154  
 Composition rate16.2713.5714.421.284/0.526
 Median spot number22.0021.0017.00 5.655/0.059
 Spot number interquartile range14.00,42.0012.00,39.0010.00,31.50 
CFP-10 unique positive
 Cases27576  
 Composition rate4.942.517.127.798/0.020
 Median spot number18.009.0016.50 0.014/0.993
 Spot number interquartile range9.00,30.008.50,125.009.25,33.75
ESAT-6 and CFP-10 double positive
 Cases431167838  
 Composition rate78.7983.9278.463.091/0.213
 ESAT-6/ Median spot number44.0042.0044.00 1.516/0.469
 ESAT-6/(Spot number interquartile range)25.00,83.0024.00,87.0023.00,78.00
 CFP-10/ Median spot number42.0053.0047.003.337/0.189
 CFP-10 (Spot number interquartile range)22.00,86.0029.00,94.0023.00,89.00
Total spot number
 Cases5471991068  
 Composition rate100.00100.00100.00
 ESAT-6/ Median spot number39.0038.0034.007.061/0.029
ESAT-6/(Spot number interquartile range)19.00,73.0020.00,82.0015.00,67.00 
CFP-10/ Median spot number30.0042.0036.005.315/0.070
CFP-10 (Spot number interquartile range)11.00,67.0014.00,84.0011.00,76.75
  1. TB: tuberculosis; PTB: pulmonary TB; PETB: pulmonary and extrapulmonary TB; EPTB extrapulmonary TB