LCQ LCQ Research and Comparative Studies

Question 1

The LCQ has been used as a primary or secondary endpoint in clinical trials of which class of antitussive medication?

Accepted Answer

P2X3 receptor antagonists such as gefapixant

Answer

The LCQ has been used as a key endpoint in clinical trials of P2X3 receptor antagonists like gefapixant for refractory chronic cough.

Question 2

Compared to the Cough Quality of Life Questionnaire (CQLQ), the LCQ is considered:

Accepted Answer

Shorter and more practical while retaining good psychometric properties

Answer

The LCQ (19 items) is shorter than the CQLQ (28 items) while maintaining strong psychometric properties, making it more practical for clinical settings.

Question 3

In comparative research, the LCQ total score has been shown to correlate moderately with which objective cough measure?

Accepted Answer

24-hour cough frequency count

Answer

The LCQ total score shows moderate correlation with 24-hour objective cough frequency counts, supporting its construct validity as a cough burden measure.

Question 4

Research has demonstrated that the LCQ is responsive to change, meaning:

Accepted Answer

It detects statistically and clinically meaningful score changes following effective treatment

Answer

Responsiveness is a key psychometric property; LCQ studies demonstrate it can detect meaningful score improvements following successful treatment.

Question 5

The LCQ has been validated for use in which of the following disease populations beyond idiopathic chronic cough?

Accepted Answer

Bronchiectasis, COPD, interstitial lung disease, and asthma

Answer

The LCQ has been validated across multiple respiratory conditions including bronchiectasis, COPD, interstitial lung disease, and asthma.

LCQ - Leicester Cough Questionnaire Practice Test

LCQ - Leicester Cough Questionnaire Practice Test

LCQ LCQ Research and Comparative Studies