Interventions to reduce losses in the cascade of care for latent tuberculosis: a systematic review and meta-analysis
METHODS: We searched several databases for articles reporting outcomes for interventions designed to strengthen the LTBI cascade. We included papers published in English from January 1990 until February 2018. Where possible, estimates were pooled using random-effects meta-analysis.
RESULTS: We identified 30 studies that evaluated 32 different interventions aimed at reducing losses in the LTBI cascade. In pooled analysis, interventions that improved completion of cascade steps included patient incentives (respectively 42 [95% CI 34–51] and 48 [95% CI 15–81] additional patients completing initial assessment and medical evaluation per 100 starting); health care worker education (28 [95% CI 4–52] additional patients initiating initial assessment per 100 identified; home visits (additional 13 [95% CI 4–21] patients completing initial assessment per 100 starting); digital solutions (additional 11 [95% CI 4–21] patients initiating initial assessment per 100 identified); and patient reminders (additional 7 [95% CI 0.3–13] patients completing initial assessment per 100 starting). Several other interventions reduced losses at specific cascade steps, but evidence for these interventions came from single studies and could not be pooled.
CONCLUSIONS: Although there is limited evidence that any single intervention significantly improves the LTBI cascade, many studies provide information about effective ways to strengthen it.
Document Type: Research Article
Affiliations: McGill International TB Centre, Montreal, QC, Canada
Publication date: January 1, 2020
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