Comorbidity burden outweighs coronary heart disease diagnosis in impairing cardiopulmonary fitness: a cross-sectional study based on cardiopulmonary exercise testing.

BMC Cardiovasc Disord · 2026 · PMC13195980 · PMID 41952121

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did not reach statistical significanceno p-value reported

Although the overall group difference did not reach statistical significance ( P ANOVA = 0.111), a significant linear trend was observed ( P for trend = 0.036, Fig. 1 D), reflecting progressively impaired ventilatory efficiency.

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