Correlation Between COPD Assessment Test (CAT) Scores and the BODE Index in Stable Chronic Obstructive Pulmonary Disease (COPD): A Prospective Observational Study.

Adjusted model (controlled for age, BMI, smoking, GOLD stage): CAT score → BODE index: β = 0.122 (95% CI: 0.098-0.146), p < 0.001; adjusted R2 = 0.720 Interpretation: The adjusted association remained highly significant (p < 0.001) and was not materially different from the unadjusted correlation (Δβ = 0.004, or 0.6% change), suggesting minimal confounding by age, BMI, smoking status, or disease severity classification.

also in 132,142 other papers

Correlation with age The correlation between CAT score and age was weak and did not reach statistical significance (Pearson r = 0.227, p = 0.081; R2 = 0.052).

also in 111,027 other papers