Prevalence and risk factors for latent tuberculosis infection among healthcare workers in Nampula Central Hospital, Mozambique

被引:19
作者
Belo, Celso [1 ]
Naidoo, Saloshni [2 ]
机构
[1] Lurio Univ, Fac Hlth Sci, Dept Med, Marrere Campus,St 4250,Km 2-3, Nampula, Mozambique
[2] Univ KwaZulu Natal, Howard Coll, Sch Nursing & Publ Hlth, Discipline Publ Hlth Med, 2nd Floor,Room 236,George Campbell Bldg, ZA-4041 Durban, South Africa
基金
美国国家卫生研究院;
关键词
Tuberculin skin test; Immunosuppression; Administrative control measures; RELEASE ASSAY; SANTIAGO;
D O I
10.1186/s12879-017-2516-4
中图分类号
R51 [传染病];
学科分类号
100401 ;
摘要
Background: Healthcare workers in high tuberculosis burdened countries are occupationally exposed to the tuberculosis disease with uncomplicated and complicated tuberculosis on the increase among them. Most of them acquire Mycobacterium tuberculosis but do not progress to the active disease -latent tuberculosis infection. The objective of this study was to assess the prevalence and risk factors associated with latent tuberculosis infection among healthcare workers in Nampula Central Hospital, Mozambique. Methods: This cross-sectional study of healthcare workers was conducted between 2014 and 2015. Participants (n = 209) were administered a questionnaire on demographics and occupational tuberculosis exposure and had a tuberculin skin test administered. Multivariate linear and logistic regression tested for associations between independent variables and dependent outcomes (tuberculin skin test induration and latent tuberculosis infection status). Results: The prevalence of latent tuberculosis infection was 34.4%. Latent tuberculosis infection was highest in those working for more than eight years (39.3%), those who had no BCG vaccination (39.6%) and were immunocompromised (78.1%). Being immunocompromised was significantly associated with latent tuberculosis infection (OR 5.97 [95% CI 1. 89; 18.87]). Positive but non-significant associations occurred with working in the medical domain (OR 1.02 [95% CI 0. 17; 6.37]), length of employment > eight years (OR 1.97 [95% CI 0.70; 5.53]) and occupational contact with tuberculosis patients (OR 1.24 [95% CI 0.47; 3.27]). Conclusions: Personal and occupational factors were positively associated with latent tuberculosis infection among healthcare workers in Mozambique.
引用
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页数:10
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