Associations between physical activity and mortality in chronic obstructive pulmonary disease population with comorbidities: a prospective cohort.

After IPTW, a marginally significant link between MVPA and lower mortality risk was seen (HR 0.626; 95% CI: 0.390–1.005; P=0.052) ( Table 3 ).

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In further stratified analyses of COPD patients with asthma, diabetes, renal disease, or stroke, although the direction of the effect size was consistent with the above main analysis, it did not reach statistical significance ( Table 4 ).

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