Table 3 Potential risk factors associated with QFT positivity.
Variable | n/N (%) | Univariate analysis | Multiple analysis | ||
|---|---|---|---|---|---|
Crude OR (95%CI) | p | Adjusted OR (95%CI) | p | ||
Gender | |||||
Male | 509/2674 (19.04) | Ref. | 0.012 | ||
Female | 281/1748 (16.08) | 0.82 (0.69, 0.96) | |||
Age | 790/4422 (17.87) | 1.07 (1.06, 1.08) | <0.001 | 1.07 (1.06, 1.08) | <0.001 |
Ethnicity | |||||
Han | 776/4322 (17.95) | Ref. | 0.310 | ||
Others | 14/100 (14.00) | 0.93 (0.81, 1.07) | |||
Education level | |||||
Primary school or lower | 61220 (27.73) | Ref. | 0.007 | ||
Middle school | 324/1822 (17.78) | 0.56 (0.41, 0.78) | |||
High school | 278/1573 (17.55) | 0.56 (0.40, 0.77) | |||
College and higher | 129/807 (15.99) | 0.50 (0.35, 0.70) | |||
Current marriage status | |||||
Married | 539/2271 (23.73) | Ref. | <0.001 | ||
Unmarried | 25 1/2151 (11.67) | 0.43 (0.36, 0.50) | |||
Household per capita income | |||||
<13000 RMB | 68/517 (12.77) | Ref. | 0.001 | ||
≥13000 RMB | 724/3905 (18.54) | 1.56 (1.19, 2.04) | |||
Work type of migrant worker | |||||
Manufacturing | 637/3689 (17.27) | Ref. | 0.051 | ||
Administration | 60/267 (22.47) | 1.39 (1.03, 1.88) | |||
Service | 93/466 (19.96) | 1.20 (0.94, 1.52) | |||
Smoking | |||||
Never smoked | 522/3142 (16.61) | Ref. | 0.001 | Ref. | |
Ever smoked | 268/1280 (20.94) | 1.33 (1.13, 1.57) | 1.30 (1.10,1.54) | 0.003 | |
Drinking | |||||
No | 540/3122 (17.3) | Ref. | 0.126 | ||
Yes | 250/1300 (19.23) | 1.14 (0.96, 1.34) | |||
BCG scars | |||||
Absent | 403/2402 (16.78) | Ref. | 0.040 | Ref. | |
Present | 387/2020 (19.16) | 1.18 (1.01, 1.37) | 0.82 (0.69, 0.97) | 0.019 | |
Body mass index | |||||
<18.5 | 71/593 (11.97) | 1.51 (1.16, 1.98) | |||
18.5–24 | 472/2766 (17.06) | Ref. | <0.001 | ||
24–28 | 198/830 (23.86) | 2.30 (1.72, 3.09) | |||
≥28 | 49/233 (21.03) | 1.96 (1.31, 2.92) | |||
History of close contact with TB patient | |||||
No | 742/4237 (17.51) | Ref. | 0.004 | ||
Yes | 48/185 (25.95) | 1.65 (1.18, 2.31) | |||
With a history of immune system disease | |||||
No | 786/4394 (17.89) | Ref. | 0.621 | ||
Yes | 4/28 (14.29) | 0.77 (0.27, 2.21) | |||
With suspect PTB symptoms | |||||
No | 771/4335 (17.79) | Ref. | 0.330 | ||
Yes | 19/87 (21.84) | 1.29 (0.77, 2.16) | |||
Residence registered place | |||||
East | 163/1094 (14.90) | Ref. | 0.003 | Ref. | |
Middle | 385/2104 (18.30) | 1.28 (1.05, 1.56) | 1.26 (1.02,1.55) | 0.030 | |
West | 242/1224 (19.77) | 1.41 (1.13, 1.75) | 1.47 (1.17,1.84) | 0.001 | |
