TABLE 2

Prevalence of respiratory symptoms and chronic airflow obstruction in the study participants by sex and smoking

GlobalMenWomenp-valueSmokersNever-smokersp-value
Subjects n90924311478149104182
Chronic cough15.914.916.80.014619.511.6<0.0001
CMH13.015.011.2<0.000117.08.3<0.0001
Wheezing33.733.633.80.792741.424.7<0.0001
Dyspnoea one floor13.18.317.5<0.000113.412.80.4333
Any dyspnoea26.822.031.1<0.000127.026.50.6041
Dyspnoea mMRC<0.00010.9011
073.278.068.973.073.5
I21.818.125.121.921.6
II3.82.94.73.83.9
III1.11.01.21.21.0
IV0.10.10.10.10.1
Chronic bronchitis4.75.04.30.13876.72.3<0.0001
Any symptom47.545.549.40.000255.438.3<0.0001
CAT score, mean±sd6.4±5.85.8±5.46.8±6.1<0.00016.8±5.85.9±5.7<0.0001
CAT >1019.616.222.8<0.000121.517.5<0.0001
Asthma7.96.29.4<0.00016.69.4<0.0001
Chronic airflow limitation (FR)11.814.69.4<0.000116.07.0<0.0001
Chronic airflow limitation (LLN)6.07.14.9<0.00018.82.7<0.0001
  • Values are % unless otherwise specified. CMH: chronic mucus hypersecretion; mMRC: Modified Medical Research Council dyspnoea scale; CAT: COPD Assessment Test; FR: fixed ratio; LLN: lower limit of normal.