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[Latent Tuberculosis Infection (LTBI) among Medical Personnel after Foreign Assignments]
I Meier1, A Schablon1, A Nienhaus1,2
1Universitätsklinikum Hamburg-Eppendorf (UKE), Competenzzentrum Epidemiologie und Versorgungsforschung bei Pflegeberufen (CVcare), Hamburg.
Medical personnel returning from abroad have a higher prevalence of latent tuberculosis infection (LTBI). Age and length of stay abroad increase LTBI risk. Routine screening is recommended for early detection.
Area of Science:
- Infectious Diseases
- Public Health
- Occupational Medicine
Background:
- Humanitarian aid missions frequently send medical personnel to high tuberculosis (TB) incidence regions.
- The prevalence of latent tuberculosis infection (LTBI) and associated risk factors among German medical returnees is understudied.
Purpose of the Study:
- To investigate the prevalence of LTBI among German medical personnel with foreign assignments.
- To identify risk factors associated with LTBI in this population.
Main Methods:
- A cross-sectional study involving 95 medical personnel who completed foreign assignments.
- LTBI testing using Interferon-Gamma Release Assay (IGRA).
- Risk factor assessment via questionnaire and statistical analysis (cross-tables, logistic regression).
Main Results:
- LTBI prevalence was 12.63% (95% CI: 7.70%-23.89%).
- Increased odds of LTBI were associated with older age (OR=1.06 per year) and longer duration of stay abroad (OR=1.11 per month).
Conclusions:
- Returnees from abroad exhibit a higher LTBI prevalence compared to German healthcare workers with TB contact.
- Routine pre- and post-assignment LTBI screening is necessary to detect infections acquired abroad.
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