Table 2 |
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|
Frequency and Adjusted Odds ratios (OR) and 95% Confidence Interval (95%CI) for Covariates associated with QFT-IT Results. |
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|
QFT-IT |
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|
|
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|
Characteristics |
negative N (%) |
positive N (%) |
Odds Ratio |
95% CI |
|
|
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|
Gender** |
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|
|
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|
female |
182 (92.9%) |
14 (7.1) |
1 |
|
|
male |
64 (92.8) |
5 (7.2) |
1.3 |
0.4–4.2 |
|
|
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|
Age* |
||||
|
|
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|
>30 years |
111 (96.5) |
4 (3.5) |
1 |
|
|
30–40 years |
39 (95.1) |
2 (4.9) |
1.2 |
0.2–7.0 |
|
40–50 years |
64 (94.1) |
4 (5.9) |
1.5 |
0.4–6.5 |
|
50–67 years |
32 (78.0) |
9 (22.0) |
7.7 |
2.1–28.2 |
|
|
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|
Country of birth** |
||||
|
|
||||
|
Germany |
198 (92.5) |
16 (7.5) |
1 |
|
|
foreign born |
48 (94.1) |
3 (5.9) |
0.9 |
0,2–3,3 |
|
|
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|
Job Category* |
||||
|
|
||||
|
other professions |
147 (95.5) |
7 (4.5) |
1 |
|
|
physician/nurse |
99 (89.2) |
12 (10.8) |
3.2* |
1.1–9.0 |
|
|
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|
BCG vaccination** |
||||
|
|
||||
|
no |
114 (91.2) |
11 (8.8) |
1 |
|
|
yes |
132 (94.3) |
8 (5.7) |
0.5 |
0.2–1.3 |
|
|
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|
TST history* |
||||
|
|
||||
|
negative TST in history |
146 (96.7) |
5 (3.3) |
1 |
|
|
no TST in medical history |
29 (87.9) |
4 (12.1) |
4.4 |
1.01–18.9 |
|
positive TST in history |
71 (87.7) |
10 (12.3) |
3.0 |
0.95–9.6 |
|
|
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|
Workplace** |
||||
|
|
||||
|
other |
124 (90.5) |
13 (9.5) |
1 |
|
|
admission ward |
16 (88.9) |
2 (11.1) |
1,4 |
0.3–79.2 |
|
infection ward/pulmology |
106 (96.4) |
4 (3.6) |
0,4 |
0.1–1.3 |
|
|
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|
* the final multivariate logistic regression model contains the variable age, job category and TST history. ** adjusted Odds ratio for age, job category and TST history. |
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|
Schablon et al. Journal of Occupational Medicine and Toxicology 2009 4:1 doi:10.1186/1745-6673-4-1 |
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