Table 2.
Clinical Characteristics of Non-Active Tuberculosis Patients
| Total | T-SPOT.TB (+) | T-SPOT.TB (-) | χ2value/p value | |
|---|---|---|---|---|
| n=1079 | n=339 | n=740 | ||
| Male | 662 (61.4%) | 231 (68.1%) | 431 (58.2%) | 9.607/0.002* |
| Age≥65 years | 457 (42.4%) | 166 (49.0%) | 291 (39.3%) | 8.855/0.003* |
| Obsolescent tuberculosis | 91 (8.4%) | 45 (13.3%) | 46 (6.2%) | 14.998/<0.001* |
| Smoking history | 412 (38.2%) | 152 (44.8%) | 260 (35.1%) | 9.273/0.002* |
| Hypertension | 373 (34.6%) | 136 (40.1%) | 237 (32%) | 6.729/0.009* |
| Diabetes | 170 (15.8%) | 68 (20.1%) | 102 (13.8%) | 6.898/0.009* |
| Cardiovascular and cerebrovascular diseases | 137 (12.7%) | 50 (14.7%) | 87 (11.8%) | 1.878/0.171 |
| Autoimmune diseases | 73 (6.8%) | 17 (5%) | 56 (7.6%) | 2.402/0.121 |
| Systemic corticosteroid usage | 30 (2.8%) | 6 (1.8%) | 24 (3.2%) | 1.867/0.172 |
| Immunosuppressants usage | 20 (1.9%) | 4 (1.2%) | 16 (2.2%) | 1.233/0.267 |
| Cancer | 433 (40.1%) | 143 (42.2%) | 290 (39.2%) | 0.867/0.352 |
| Radiotherapy and chemotherapy history | 58 (5.4%) | 15 (4.4%) | 43 (5.8%) | 0.878/0.349 |
| Pulmonary sarcoidosis | 20 (1.9%) | 6 (1.8%) | 14 (1.9%) | 0.190/0.890 |
| Hepatitis | 47 (4.4%) | 20 (5.9%) | 27 (3.6%) | 2.828/0.093 |
| Hypoproteinemia | 343 (32%) | 102 (30.2%) | 241 (32.8%) | 0.750/0.386 |
Notes: Numbers of patients (constituent ratio) were shown in the table The positive rate in patients with or without clinical characteristic were compared, and the results were shown as χ2value/p value. *p values<0.05 were considered to be statistically significant.