Table 2 Comparison of characteristics between bacteriologically positive and negative patients who underwent all sputum smear, culture and Xpert in Tianjin, China, 2017–2018
Characteristics (n) | Negativity (%) | Positivity (%) | Total | P by χ2 |
|---|---|---|---|---|
Gender (2484) | ||||
Male | 434 (65.8) | 1265 (69.4) | 1699 | 0.09 |
Female | 226 (34.2) | 559 (30.6) | 785 | |
Age (2484) | ||||
< 25 yr a | 162 (24.5) | 283 (15.5) | 445 | < 0.01 |
25–44 | 241 (36.5) | 513 (28.1) | 754 | |
45–64 | 173 (26.2) | 608 (33.3) | 781 | |
≥ 65 yr | 84 (12.7) | 420 (23.0) | 504 | |
Ethnic group (2484) | ||||
Han | 649 (98.3) | 1788 (98.0) | 2437 | 0.62 |
Other | 11 (1.7) | 36 (2.0) | 47 | |
Migrant (2484) | ||||
No | 535 (81.1) | 1641 (90.0) | 2176 | < 0.01 |
Yes | 125 (18.9) | 183 (10.0) | 308 | |
Occupation (2484) | ||||
Student | 99 (15.0) | 148 (8.1) | 247 | < 0.01 |
Unemployed | 107 (16.2) | 512 (28.1) | 619 | |
Farmer | 68 (10.3) | 218 (12.0) | 286 | |
Service/manufacture worker b | 75 (11.4) | 126 (6.9) | 201 | |
State employee | 179 (27.1) | 355 (19.5) | 534 | |
Retiree | 90 (13.6) | 314 (17.2) | 404 | |
Not provided/unclear | 42 (6.4) | 151 (8.3) | 193 | |
Hospital pattern of diagnosis (2484) | ||||
City-level TB clinic | 237 (35.9) | 255 (14.0) | 492 | < 0.01 |
City-level TB hospital c | 286 (43.3) | 1337 (73.3) | 1623 | |
District-level TB clinics | 137 (20.8) | 232 (12.7) | 369 | |
Time for having TB symptoms d (2,484) | ||||
< 2 weeks | 413 (62.6) | 809 (44.4) | 1222 | < 0.01 |
≥ 2 weeks | 247 (37.4) | 1015 (55.6) | 1262 | |
Previously treated (2484) | ||||
No | 601 (91.1) | 1549 (84.9) | 2150 | < 0.01 |
Yes | 59 (8.9) | 275 (15.1) | 334 | |
Symptoms with cough (2463) | ||||
No | 412 (62.5) | 641 (35.5) | 1053 | < 0.01 |
Yes | 247 (37.5) | 1163 (64.5) | 1410 | |
Symptoms with blood sputum (2463) | ||||
No | 618 (93.8) | 1598 (88.6) | 2216 | < 0.01 |
Yes | 41 (6.2) | 206 (11.4) | 247 | |
Cavitation on chest X-ray (2445) | ||||
No | 574 (87.5) | 1099 (61.4) | 1673 | < 0.01 |
Yes | 82 (12.5) | 690 (38.6) | 772 | |
Bilateral lung lobes affected (2445) | ||||
No | 435 (66.3) | 787 (44.0) | 1222 | < 0.01 |
Yes | 221 (33.7) | 1002 (56.0) | 1223 | |
Diabetes comorbidity (2303) | ||||
No | 560 (91.2) | 1412 (83.6) | 1972 | < 0.01 |
Yes | 54 (8.8) | 277 (16.4) | 331 | |
Extra-pulmonary TB concomitance (2303) | ||||
No | 557 (90.7) | 1492 (88.3) | 2049 | 0.11 |
Yes | 57 (9.3) | 197 (11.7) | 254 | |