Prevalence and risk factors of airflow obstruction in Southwest China: baseline findings from a multi-center population-based cohort study.

BMC Pulm Med · 2026 · PMC13064074 · PMID 41772519

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an increasing trendno p-value reported

The prevalence of airflow obstruction showed an increasing trend across smoking status, from 11.8% (95% CI: 11.3–12.3) in never smokers to 19.7% (95% CI: 18.1–21.4) in former smokers, and to 23.5% (95% CI: 22.3–24.8) in current smokers ( P < 0.001).

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