LCQ Research and Comparative Studies Flashcards
6 cards from real LCQ practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 LCQ Research and Comparative Studies flashcards as text
The LCQ has been used as a primary or secondary endpoint in clinical trials of which class of antitussive medication?
Answer: P2X3 receptor antagonists such as gefapixant
The LCQ has been used as a key endpoint in clinical trials of P2X3 receptor antagonists like gefapixant for refractory chronic cough.
Compared to the Cough Quality of Life Questionnaire (CQLQ), the LCQ is considered:
Answer: Shorter and more practical while retaining good psychometric properties
The LCQ (19 items) is shorter than the CQLQ (28 items) while maintaining strong psychometric properties, making it more practical for clinical settings.
In comparative research, the LCQ total score has been shown to correlate moderately with which objective cough measure?
Answer: 24-hour cough frequency count
The LCQ total score shows moderate correlation with 24-hour objective cough frequency counts, supporting its construct validity as a cough burden measure.
Research has demonstrated that the LCQ is responsive to change, meaning:
Answer: It detects statistically and clinically meaningful score changes following effective treatment
Responsiveness is a key psychometric property; LCQ studies demonstrate it can detect meaningful score improvements following successful treatment.
The LCQ has been validated for use in which of the following disease populations beyond idiopathic chronic cough?
Answer: Bronchiectasis, COPD, interstitial lung disease, and asthma
The LCQ has been validated across multiple respiratory conditions including bronchiectasis, COPD, interstitial lung disease, and asthma.
In a systematic review context, the LCQ is considered a preferred outcome measure for chronic cough trials because:
Answer: It has the strongest evidence base for reliability, validity, and responsiveness among cough-specific PROs
The LCQ has the most extensive evidence base for psychometric quality among chronic cough-specific PROs, making it the preferred measure in systematic reviews and meta-analyses.