Universidad Peruana Cayetano Heredia
Recurrent TB: a systematic review and meta-analysis of the incidence rates and the proportions of relapses and reinfections
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| dc.contributor.author | Vega, Victor | |
| dc.contributor.author | Rodríguez, Sharon | |
| dc.contributor.author | Van der Stuyft, Patrick | |
| dc.contributor.author | Seas Ramos, Carlos Rafael | |
| dc.contributor.author | Otero Vegas, Larissa | |
| dc.date.accessioned | 2021-04-13T20:51:03Z | |
| dc.date.available | 2021-04-13T20:51:03Z | |
| dc.date.issued | 2021 | |
| dc.identifier.uri | https://hdl.handle.net/20.500.12866/9226 | |
| dc.description.abstract | BACKGROUND: A recurrent tuberculosis (TB) episode results from exogenous reinfection or relapse after cure. The use of genotyping allows the distinction between both. METHODS: We did a systematic review and meta-analysis, using four databases to search for studies in English, French and Spanish published between 1 January 1980 and 30 September 2020 that assessed recurrences after TB treatment success and/or differentiated relapses from reinfections using genotyping. We calculated person years of follow-up and performed random-effects model meta-analysis for estimating pooled recurrent TB incidence rates and proportions of relapses and reinfections. We performed subgroup analyses by clinical-epidemiological factors and by methodological study characteristics. FINDINGS: The pooled recurrent TB incidence rate was 2.26 per 100 person years at risk (95% CI 1.87 to 2.73; 145 studies). Heterogeneity was high (I(2)=98%). Stratified pooled recurrence rates increased from 1.47 (95% CI 0.87 to 2.46) to 4.10 (95% CI 2.67 to 6.28) per 100 person years for studies conducted in low versus high TB incidence settings. Background HIV prevalence, treatment drug regimen, sample size and duration of follow-up contributed too. The pooled proportion of relapses was 70% (95% CI 63% to 77%; I²=85%; 48 studies). Heterogeneity was determined by background TB incidence, as demonstrated by pooled proportions of 83% (95% CI 75% to 89%) versus 59% (95% CI 42% to 74%) relapse for studies from settings with low versus high TB incidence, respectively. INTERPRETATION: The risk of recurrent TB is substantial and relapse is consistently the most frequent form of recurrence. Notwithstanding, with increasing background TB incidence the proportion of reinfections increases and the predominance of relapses among recurrences decreases. | en_US |
| dc.language.iso | eng | |
| dc.publisher | BMJ Publishing Group | |
| dc.relation.ispartofseries | Thorax | |
| dc.rights | info:eu-repo/semantics/restrictedAccess | |
| dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es | |
| dc.subject | tuberculosis | en_US |
| dc.subject | clinical epidemiology | en_US |
| dc.subject | respiratory infection | en_US |
| dc.title | Recurrent TB: a systematic review and meta-analysis of the incidence rates and the proportions of relapses and reinfections | en_US |
| dc.type | info:eu-repo/semantics/review | |
| dc.identifier.doi | https://doi.org/10.1136/thoraxjnl-2020-215449 | |
| dc.subject.ocde | https://purl.org/pe-repo/ocde/ford#3.02.07 | |
| dc.relation.issn | 1468-3296 |
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