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Table 1 Demographic and clinical characteristics of ATB and non-TB patients

From: The TBAg/PHA ratio in T-SPOT.TB assay has high prospective value in the diagnosis of active tuberculosis: a multicenter study in China

Characteristic ATB (n = 1549) Non-TB (n = 724) P value
Mean age (mean ± SD), years 45.56 ± 16.72 47.31 ± 17.25  
Male sex 1052 (67.91) 456 (62.98) 0.053
History of TB 278 (17.95) 23 (3.18)  < 0.01
Immunosuppressive conditions 382 (24.66) 125 (17.27)  < 0.01
 Human immunodeficiency virus infection 8 (0.52) 1 (0.14) 0.287
 Hematologic malignancy 21 (1.36) 5 (0.69) 0.165
 Solid tumor 59 (3.81) 18 (2.49) 0.104
 Chronic renal failure 56 (3.62) 19 (2.62) 0.218
 Liver cirrhosis 48 (3.10) 10 (1.38) 0.016
 Autoimmune disease receiving treatment 86 (5.55) 31 (4.28) 0.202
 Transplantation receiving treatment 25 (1.61) 4 (0.55) 0.036
 Diabetes mellitus 79 (5.10) 37 (5.11) 0.992
Confirmed ATB 1091 (70.43)   
 Xpert 893 (57.65)   
 Culture 836 (53.97)   
Probable ATB 458 (29.57)   
  1. Data are presented as numbers (%) unless otherwise indicated
  2. TB tuberculosis, ATB active tuberculosis, SD standard deviation, AFS acid-fast staining, PCR polymerase chain reaction