LCQ LCQ Research and Comparative Studies 2

Question 1

Research comparing LCQ scores between males and females with chronic cough has generally found:

Accepted Answer

Females generally report lower (worse) LCQ scores, particularly on the psychological domain

Answer

Studies indicate that females with chronic cough tend to report greater quality of life impairment on the LCQ, especially on the psychological domain.

Question 2

The LCQ has been used to demonstrate that chronic cough in interstitial lung disease (ILD) produces:

Accepted Answer

Substantial quality of life impairment comparable to or exceeding that in COPD

Answer

Research using the LCQ in ILD patients has shown substantial multi-domain quality of life impairment, often comparable to the burden seen in COPD.

Question 3

In a landmark randomized controlled trial using the LCQ, gefapixant (a P2X3 antagonist) demonstrated:

Accepted Answer

A statistically significant and clinically meaningful improvement in LCQ total scores compared to placebo

Answer

Phase III trials of gefapixant showed statistically significant, clinically meaningful LCQ total score improvements versus placebo in patients with refractory chronic cough.

Question 4

When the LCQ is used in longitudinal cohort studies, what is the typical pattern of LCQ scores in untreated chronic cough patients?

Accepted Answer

Stable or progressively worsening scores over time without treatment

Answer

In untreated chronic cough cohorts, LCQ scores tend to remain stable or worsen over time, reflecting the chronic, persistent nature of the condition.

Question 5

A meta-analysis of cough PROs would rank the LCQ's internal consistency (Cronbach's alpha) as:

Accepted Answer

Good to excellent (alpha > 0.70)

Answer

The LCQ consistently demonstrates good to excellent internal consistency with Cronbach's alpha values typically above 0.70 across multiple studies.

LCQ - Leicester Cough Questionnaire Practice Test

LCQ - Leicester Cough Questionnaire Practice Test

LCQ LCQ Research and Comparative Studies 2