Distinct Risk Factors for Clinical and Bacteriologically Confirmed Tuberculosis among Child Household Contacts in a High-Burden Setting

Le résumé fourni par la source

The identification and screening of children at high risk of tuberculosis is essential to the control and prevention of child tuberculosis (TB). BUTIMBA, an active case finding and household contact-tracing project implemented between 2013 and 2015 in Eswatini, evaluated 5,413 contacts of 1,568 index cases, of whom 82 (1.5%) were diagnosed with TB disease. We conducted univariate and multivariate clustered logistic regression analyses of risk factors for any TB diagnosis among child household contacts of TB cases. Children younger than 5 years and children with positive HIV status were more likely to have TB than children aged 5–14 years and children with negative HIV status, respectively (adjusted odds ratio [aOR]: 2.2, P < 0.001; aOR: 5.0, P < 0.001). Children with one or more TB symptoms were more likely to be diagnosed with TB based on clinical criteria, but less likely to have bacteriologically confirmed TB, highlighting subjectivity in determination of child TB.

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