From: The validity and precision of the leicester cough questionnaire in COPD patients with chronic cough
Intraclass correlation coefficient
95%CI*
LCQ†
Birring[16]‡
Huisman[17]‡
This study§
Physical
0.93
0.86
0.84; 0.97
Psychological
0.90
0.79
0.51; 0.91
Social
0.88
0.72; 0.95
Total
0.96
0.92
0.81; 0.96