Background
Methods
Study design and setting
Diagnostic methods
Questionnaire items
Statistical analysis
Results
Study population
Variable | N = 2004 | % |
---|---|---|
Age (years) | ||
> 25 |
253
|
12.6
|
25-35 years |
481
|
24.0
|
35-45 years |
571
|
28.5
|
45-55 years |
507
|
25.3
|
> 55 years |
192
|
9.6
|
Gender
| ||
Female |
1548
|
77.2
|
Male |
456
|
22.8
|
Country of birth
| ||
Germany |
1667
|
83.2
|
Foreign-born |
337
|
16.8
|
TB in own history
| ||
Yes |
24
|
1.2
|
No |
1980
|
98.8
|
BCG vaccination
| ||
Yes |
905
|
45.2
|
No |
1099
|
54.8
|
Profession
| ||
Nurse |
1087
|
54.2
|
Physician |
281
|
14.0
|
Trainee |
110
|
5.5
|
Therapist |
66
|
3.3
|
Administration |
92
|
4.6
|
Ancillary nursing staff |
30
|
1.5
|
Cleaning staff |
79
|
3.9
|
Social workers/auxiliary |
102
|
5.1
|
Radiology staff |
28
|
1.4
|
Laboratory staff |
70
|
3.5
|
Other |
59
|
2.9
|
Workplace
| ||
Admission ward |
138
|
6.9
|
Infection ward |
303
|
15.1
|
Geriatric care |
309
|
15.4
|
Radiology/Laboratory/Pathology |
176
|
8.8
|
Administration |
75
|
3.7
|
Intensive care |
213
|
10.6
|
Clinic ward |
721
|
36.0
|
Other |
69
|
3.4
|
History of TST
| ||
Negative TST in history |
1017
|
50.7
|
Positive TST in history |
480
|
24.0
|
No TST |
507
|
25.3
|
Profession
Workplace
Duration of employment in healthcare sector
Putative risk factors
Covariates | QFT-IT Negative n/% | QFT-IT Positive n/% | Odds Ratio | 95% CI |
---|---|---|---|---|
Age ** | ||||
> 25 years | 249 (98.4) | 4 (1.6) | 1 | |
25-35 years | 449 (93.3) | 32 (6.7) |
3.8
|
1.3-11.2
|
35-45 years | 524 (91.8) | 47 (8.2) |
4.4
|
1.6-12.5
|
45-55 years | 440 (86.8) | 67 (13.2) |
7.6
|
2.7-21.4
|
> 55 years | 144 (75.0) | 48 (25.0) |
15.1
|
5.3-43.4
|
Gender**
| ||||
Female | 1392 (89.9) | 156 (10.1) | 1 | |
Male | 414 (90.8) | 42 (9.2) | 1.2 | 0.8-1.7 |
Country of birth**
| ||||
Germany | 1529 (91.7) | 138 (8.3) | 1 | |
Foreign-born | 277 (82.2) | 60 (17.8) |
2.0
|
1.4-2.8
|
TB in own history**
| ||||
No | 1792 (90.5) | 188 (9.5) | 1 | |
Yes | 14 (58.3) | 10 (41.7) |
4.9
|
1.97-12.2
|
BCG vaccination
| ||||
No | 995 (90.5) | 104 (9.5) | 1 | |
Yes | 811 (89.6) | 94 (10.4) | 0.9 | 0.7-1.3 |
Profession
| ||||
Physicians | 254 (90.4) | 27 (9.6) | 1 | |
Nurses | 982 (90.3) | 105 (9.7) | 0.94 | 0.6-1.6 |
Administration staff | 146 (85.4) | 25 (14.6) | 1.1. | 0.5-2.2 |
Technicians and special ward staff | 175 (90.2) | 19 (9.8) | 0.7 | 0.3-1.5- |
Unknown | 51 (86.4) | 8 (9.9) | 1.3 | 0.5-3.3 |
Social workers/auxiliaries | 198 (93.4) | 14 (6.6) | 0.8 | 0.4-1.8 |
Workplace
| ||||
Other clinic ward | 653 (90.6) | 68 (9.4) | 1 | |
Unknown | 64 (92.8) | 5 (7.2) | 0.9 | 0.3-2.4 |
Admission ward | 129 (93.5) | 9 (6.5) | 0.7 | 0.2-2.3 |
Infection ward | 278 (91.7) | 25 (8.3) | 1.3 | 0.4-3.8 |
Geriatric care | 272 (88.0) | 37 (12.0) | 1.7 | 0.6-4.9 |
Technicians | 151 (85.8) | 25 (14.2) | 2 | 0.6-6.4 |
Administration | 64 (85.3) | 11 (14.7) | 1.7 | 0.5-5.7 |
Intensive care/surgery room | 195 (91.5) | 18 (8.5) | 1.1 | 0.9-3.3 |
Previous TST in medical history**
| ||||
Negative TST | 961 (94.5) | 56 (5.5) | 1 | |
Positive TST | 386 (80.4) | 94 (19.6) |
3.5
|
2.4-4.99
|
No TST | 459 (90.5) | 48 (9.5) |
1.7
|
1.1-2.5
|