Title
Lung cancer occurrence after an episode of tuberculosis: a systematic review and meta-analysis
Date Issued
30 September 2022
Access level
open access
Resource Type
review
Author(s)
Publisher(s)
European Respiratory Society
Abstract
Introduction: People with tuberculosis experience long-term health effects beyond cure, including chronic respiratory diseases. We investigated whether tuberculosis is a risk factor for subsequent lung cancer. Methods: We searched PubMed, Scopus, Cochrane, Latin American and Caribbean Health Sciences Literature and the Scientific Electronic Library Online for cohort and case–control studies providing effect estimates for the association between tuberculosis and subsequent lung cancer. We pooled estimates through random-effects meta-analysis. The study was registered in PROSPERO (CDR42020178362). Results: Out of 6240 records, we included 29 cohort and 44 case–control studies. Pooled estimates adjusted for age and smoking (assessed quantitatively) were hazard ratio (HR) 1.51 (95% CI 1.30–1.76, I2 =81%; five studies) and OR 1.74 (95% CI 1.42–2.13, I2 =59%; 19 studies). The occurrence of lung cancer was increased for 2 years after tuberculosis diagnosis (HR 5.01, 95% CI 3.64–6.89; two studies), but decreased thereafter. Most studies were retrospective, had moderate to high risk of bias, and did not control for passive smoking, environmental exposure and socioeconomic status. Heterogeneity was high. Conclusion: We document an association between tuberculosis and lung cancer occurrence, particularly in, but not limited to, the first 2 years after tuberculosis diagnosis. Some cancer cases may have been present at the time of tuberculosis diagnosis and therefore causality cannot be ascertained. Prospective studies controlling for key confounding factors are needed to identify which tuberculosis patients are at the highest risk, as well as cost-effective approaches to mitigate such risk.
Volume
31
Issue
165
Language
English
OCDE Knowledge area
Sistema respiratorio
Scopus EID
2-s2.0-85135156019
PubMed ID
Source
European Respiratory Review
ISSN of the container
09059180
Sponsor(s)
Support statement: The study received financial support from the Institutional Collaboration Framework Agreement lV between the Institute of Tropical Medicine Antwerp, Belgium and Instituto de Medicina Tropical Alexander von Humboldt, Universidad Peruana Cayetano Heredia, Peru. L. Otero is supported by an Emerging Global Leader Award from the Fogarty International Center at the National Institutes of Health (K43TW011137). Role of the funding source: The funding source had no role in the design, interpretation, or decision to submit this manuscript. Funding information for this article has been deposited with the Crossref Funder Registry.
Instituut voor Tropische Geneeskunde - ITG
Sources of information:
Directorio de Producción Científica
Scopus