Table 3.
GOLD classification by symptom as captured by mMRC and CAT
| Kappa statistic (95% CI) =0.331 (0.27–39); Spearman correlation coefficient =63 (P<0.001) | ||
|---|---|---|
| CAT | ||
| mMRC | High symptoms (CAT score ≥10) | Low symptoms (CAT score <10) |
| High symptoms (mMRC score ≥2) n (%)a | 266 (42.2) | 14 (2.2) |
| Low symptoms (mMRC score <2) n (%)a | 209 (33.1) | 142 (22.5) |
Note:
a
n (%) are based on final sample size of 631 after 365 days of post-survey follow-up.
Abbreviations: CAT, COPD assessment test; CI, confidence interval; GOLD, Global initiative for chronic Obstructive Lung Disease; mMRC, modified Medical Research Council.