Skip to main content

Table 3 Concurrent validity

From: The validity and precision of the leicester cough questionnaire in COPD patients with chronic cough

  LCQ*    
  Physical Psychological Social Total
SGRQ    
Symptoms -0.57 (54; < 0.001) -0.45 (54; 0.001) -0.51 (53; < 0.001) -0.58 (53; < 0.001)
Activity -0.58 (54; < 0.001) -0.11 (54; 0.42) -0.39 (53; 0.004) -0.42 (53; 0.002)
Impact -0.67 (54; < 0.001) -0.31 (54; 0.023) -0.60 (53; < 0.001) -0.61 (53; < 0.001)
Total -0.68 (54; < 0.001) -0.28 (54; 0.037) -0.57 (53; < 0.001) -0.60 (53; < 0.001)
SF-36    
Physical functioning 0.39 (54; 0.004) 0.06 (54; 0.65) 0.29 (53; 0.039) 0.28 (53; 0.041)
Role physical 0.31 (53; 0.022) 0.05 (53; 0.72) 0.23 (52; 0.099) 0.22 (52; 0.11)
Pain 0.47 (53; < 0.001) 0.29 (53; 0.038) 0.47 (52; 0.001) 0.47 (52; < 0.001)
General health 0.42 (54; 0.002) 0.25 (54; 0.072) 0.36 (53; 0.008) 0.37 (53; 0.007)
Vitality 0.64 (54; < 0.001) 0.24 (54; 0.086) 0.49 (53; < 0.001) 0.50 (53; < 0.001)
Social functioning 0.41 (54; 0.002) 0.32 (54; 0.017) 0.41 (53; 0.002) 0.43 (53; 0.001)
Role emotional 0.05 (53; 0.70) 0.04 (53; 0.77) 0.13 (52; 0.38) 0.10 (52; 0.48)
Mental health 0.40 (54; 0.003) 0.30 (54; 0.026) 0.37 (53; 0.006) 0.44 (53; 0.001)
  1. Spearman correlation coefficients are presented (n; p-value).
  2. * Leicester Cough Questionnaire
  3. † St. George's Respiratory Questionnaire, a disease-specific health status questionnaire
  4. ‡ Short form 36, a generic health status questionnaire