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Methods for Detecting Cough and Airway Inflammation in Mice
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Development and Validation of Cough Hypersensitivity Assessment Test.

Zien Feng1, Fang Yi1, Wenzhi Zhan1

  • 1State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China.

The Journal of Allergy and Clinical Immunology. in Practice
|March 16, 2025
PubMed
Summary

A new questionnaire, the Cough Hypersensitivity Assessment Test (CHAT), effectively measures cough hypersensitivity. This validated tool assesses triggers and symptoms, aiding in chronic cough evaluation.

Keywords:
Chronic coughCough hypersensitivityEvaluationQuestionnaire

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Area of Science:

  • Pulmonology
  • Clinical Assessment
  • Sensory Science

Background:

  • Cough hypersensitivity is a key feature of chronic cough, involving sensory dysfunction to various stimuli.
  • Current methods for evaluating cough hypersensitivity are limited, necessitating a comprehensive assessment tool.

Purpose of the Study:

  • To develop and validate a questionnaire for assessing the degree of cough hypersensitivity.

Main Methods:

  • The Cough Hypersensitivity Assessment Test (CHAT) was developed using literature reviews, expert opinions, and clinical data.
  • Item reduction, dimensional allocation, reliability, validity, and responsiveness were assessed in patients with chronic cough.

Main Results:

  • The final 18-item CHAT, with scores from 0-72, includes dimensions for environmental triggers, daily life triggers, and tussive symptoms.
  • CHAT demonstrated robust internal reliability (Cronbach α = 0.832), test-retest reliability (ICC = 0.884), construct validity, and responsiveness.
  • A cutoff score of 18 was established for identifying cough hypersensitivity, with moderate correlation to capsaicin cough sensitivity.

Conclusions:

  • The Cough Hypersensitivity Assessment Test (CHAT) is a comprehensive and reliable tool for measuring cough hypersensitivity.
  • CHAT exhibits strong psychometric properties, including reliability and validity, making it valuable for clinical use.
  • This validated questionnaire can aid in the objective measurement of cough hypersensitivity in clinical practice and research.