Table 6 Concurrent validity: polyserial Correlations between the chest-related ePRO total summary score and the CCSQ for all participants (N = 195)

Cough

AM1 (cough frequency)

0.716

0.804

0.789

AM4 (cough severity)

0.699

0.768

0.795

AM5 (cough frequency)

0.707

0.759

0.807

PM1 (cough severity)

0.768

0.760

0.791

PM12 (cough frequency)

0.675

0.744

0.798

Nasal congestion

AM2 (stuffy nose)

0.641

0.772

0.803

AM3 (runny nose)

0.608

0.757

0.801

AM9 (stuffy nose)

0.638

0.820

0.810

AM10 (clear nose)

0.588

0.683

0.756

PM2 (runny nose)

0.650

0.686

0.763

PM3 (stuffy nose)

0.645

0.758

0.833

PM4 (clear nose)

0.640

0.690

0.767

PM10 (blow nose)

0.654

0.758

0.737

M11 (stuffy nose)

0.617

0.756

0.807

Chest congestion

AM6 (breathe air deep chest)

0.844

0.908

0.920

AM11 (chest tightness)

0.851

0.902

0.868

PM5 (chest tightness)

0.838

0.904

0.906

PM13 (breathe air deep chest)

0.855

0.887

0.907

Head, face, and body pains

AM12 (pain face nose)

0.688

0.752

0.745

AM14 (head hurt)

0.681

0.727

0.736

AM8 (headache)

0.669

0.762

0.741

AM15 (arm/leg ache)

0.628

0.723

0.717

PM6 (pain face, eyes/nose)

0.699

0.763

0.732

PM8 (head hurt)

0.670

0.693

0.727

PM9 (arm/leg ache)

0.642

0.682

0.725

PM14 (tight eyes/nose)

0.756

0.789

0.762

PM16 (headache)

0.677

0.710

0.724

PM17 (arm/leg ache)

0.654

0.670

0.724

Sore throat

AM7 (pain swallow)

0.706

0.804

0.821

AM13 (sore throat)

0.624

0.799

0.765

PM7 (sore throat)

0.633

0.813

0.785

PM15 (pain swallow)

0.709

0.831

0.760