| |
IGRA
|
Total
|
Univariable
|
Multivariable
|
|---|
| |
Negative
|
Positive
|
OR
|
95% CI
|
p
|
OR
|
95% CI
|
p
|
|---|
|
Age
|
N (%)
|
N (%)
| |
1.096
|
1.086
|
1.107
|
< 0.001
| | | | |
|
20–29
|
780 (93.4)
|
55 (6.6)
|
835
|
1
| | | |
1
| | | |
|
30–39
|
774 (85.6)
|
130 (14.4)
|
904
|
2.259
|
1.612
|
3.166
|
< 0.001
|
2.25
|
1.593
|
3.18
|
< 0.001
|
|
40–49
|
656 (65.7)
|
343 (34.3)
|
999
|
7.031
|
5.165
|
9.570
|
< 0.001
|
5.95
|
4.282
|
8.268
|
0.0028
|
|
50–59
|
220 (49.0)
|
229 (51.0)
|
449
|
14.013
|
10.023
|
19.591
|
< 0.001
|
10.24
|
7.136
|
14.692
|
< 0.001
|
|
≥ 60
|
23 (50.0)
|
23 (50.0)
|
46
|
13.340
|
7.021
|
25.345
|
< 0.001
|
13.3
|
6.637
|
26.655
|
< 0.001
|
|
Gender, male
|
576/2453 (23.5)
|
308/779 (39.5)
|
884 (27.4)
|
2.299
|
1.931
|
2.737
|
< 0.001
|
1.56
|
1.243
|
1.968
|
< 0.001
|
|
Finding of CXR
| | | | | | | | | | |
|
No active lung
|
2319 (75.0)
|
774 (25.0)
|
3093
|
1
| | | |
1
| | | |
|
Healed TB
|
14 (33.3)
|
28 (66.7)
|
42
|
6.240
|
3.268
|
11.915
|
< 0.001
|
4.39
|
2.175
|
8.86
|
< 0.001
|
|
Occupation
| | | | | | | | | | |
|
Administrative
|
212 (53.0)
|
188 (47.0)
|
400
|
1
| | | |
1
| | | |
|
Techniciana
|
155 (70.1)
|
66 (29.9)
|
221
|
0.473
|
0.334
|
0.671
|
0.6059
|
0.703
|
0.482
|
1.024
|
0.8625
|
|
Health-Aidsb
|
642 (73.9)
|
227 (26.1)
|
869
|
0.447
|
0.348
|
0.575
|
0.9207
|
0.858
|
0.648
|
1.135
|
0.0454
|
|
Physician
|
212 (73.6)
|
76 (26.4)
|
288
|
0.403
|
0.290
|
0.561
|
0.4081
|
0.485
|
0.334
|
0.703
|
0.0040
|
|
Nurse
|
1232 (84.7)
|
223 (15.3)
|
1455
|
0.202
|
0.158
|
0.258
|
< 0.001
|
0.66
|
0.484
|
0.899
|
0.3822
|
|
Department
| | | | | | | | | | |
|
High-riskc
|
521 (85.7)
|
87 (14.3)
|
608
|
0.443
|
0.348
|
0.566
|
< .0001
|
0.895
|
0.676
|
1.184
|
0.436
|
|
Others
|
1932 (73.6)
|
693 (26.4)
|
2625
|
1
| | | |
1
| | | |
|
Working duration, months
| | | | | | | | | | | |
|
< 12 months
|
326 (90.6)
|
34 (9.4)
|
360
|
1
| | | | | | | |
|
12 to < 60 months
|
655 (90.7)
|
67 (9.3)
|
722
|
0.956
|
0.612
|
1.493
|
< .0001
| | | | |
|
60 to < 120 months
|
236 (84.6)
|
43 (15.4)
|
279
|
1.675
|
1.027
|
2.733
|
0.0127
| | | | |
|
120 to < 240 months
|
531 (79.6)
|
136 (20.4)
|
667
|
2.342
|
1.551
|
3.535
|
0.7556
| | | | |
|
240 to < 360 months
|
583 (60.0)
|
389 (40.0)
|
972
|
6.116
|
4.152
|
9.010
|
< 0.001
| | | | |
|
> 360 months
|
119 (51.7)
|
111 (48.3)
|
230
|
8.612
|
5.500
|
13.485
|
< 0.001
| | | | |
- Data are presented as numbers (percentages) unless otherwise indicated
- HCW health care worker; LTBI latent tuberculous infection; BMI body mass index; TB tuberculosis; CXR chest X-ray; IGRA IFN-γ release assay; IQR interquartile range; CI confidence interval
- aTechnicians who perform radiological, laboratory and pathology testing
- bEmployees who provide physiotherapy and patient transfer services
- chigh risk department defined as those who are working at TB-related departments, such as respiratory department of ward and outpatient clinic, medical intensive care unit, emergency department, microbiology laboratory, and radiology department
