Skip to main content

Table 2 Frequency and Adjusted Odds ratios (OR) and 95% Confidence Interval (95%CI) for Covariates associated with QFT-IT Results.

From: Prevalence of latent tuberculosis infection among health care workers in a hospital for pulmonary diseases

  QFT-IT   
Characteristics negative
N (%)
positive
N (%)
Odds Ratio 95% CI
Gender**     
female 182 (92.9%) 14 (7.1) 1  
male 64 (92.8) 5 (7.2) 1.3 0.4–4.2
Age*     
>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
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
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
BCG vaccination**     
no 114 (91.2) 11 (8.8) 1  
yes 132 (94.3) 8 (5.7) 0.5 0.2–1.3
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
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
  1. * the final multivariate logistic regression model contains the variable age, job category and TST history.
  2. ** adjusted Odds ratio for age, job category and TST history.