ArticleAmerican journal of epidemiology2026
Leukotriene-modifying agent chemoprophylaxis for severe influenza illness: a multi-approach study.
Article in American journal of epidemiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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11 authors.
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Abstract
Animal and in vitro studies suggest that leukotriene-modifying agents (LMAs) may decrease susceptibility to influenza illness. We estimated the effect of LMAs on severe human influenza illness in a retrospective cohort using three analytic approaches: (1) a marginal structural model, (2) a proportional hazards model, and (3) a case-time-control design. Study populations included individuals with asthma and/or allergic rhinitis for whom LMAs are approved and who were enrolled in Tennessee Medicaid (TennCare) or Department of Defense Military Health System (DoD MHS) from 1995 to 2019. Exposed periods were defined by LMA prescription start dates plus days' supply. Severe influenza illness was defined using previously validated International Classification of Diseases criteria. Montelukast accounted for 99% of LMA prescription fills. Adjusted incidence rate ratios from the marginal structural model and adjusted hazard ratios from the proportional hazards model were 1.26 (95% confidence interval [CI], 0.99-1.59) and 1.14 (95% CI, 0.92-1.41) for TennCare and 1.01 (95% CI, 0.84-1.21) and 0.97 (95% CI, 0.82-1.16) for DoD MHS, respectively. Adjusted odds ratios from the case-time-control were 1.11 (95% CI, 0.74-1.65) for TennCare and 1.91 (95% CI, 1.29-2.84) for DoD MHS. Findings in different populations and designs do not support the use of LMAs for chemoprophylaxis of severe influenza illness. Conclusions regarding LMAs other than montelukast were not possible.
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