Persistent Airflow Limitation in Asthma: Clinical Characteristics, Risk Factors, and Long-term Outcomes from a Multicenter Cohort Study.

J Asthma Allergy · 2026 · PMC13360822 · PMID 42445813

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did not reach statistical significanceno p-value reported

showed a trendno p-value reported

In the multivariable Cox regression analysis, PAL showed a trend toward an increased risk of severe exacerbations (adjusted hazard ratio (aHR), 1.81; 95% CI, 0.99–3.32), although this did not reach statistical significance ( Table S7 ).

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