Evaluation and impact of chronic cough: comparison of specific vs generic quality-of-life questionnaires

Authors: Kalpaklioglu, Ayse F.; Kara, Turkan1; Kurtipek, Ercan1; Kocyigit, Pinodotnar1; Ekici, Aydanur1; Ekici, Mehmet1

Source: Annals of Allergy, Asthma and Immunology, Volume 94, Number 5, May 2005 , pp. 581-585(5)

Publisher: American College of Allergy, Asthma, & Immunology

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Abstract:

Background: Chronic cough is a common condition that has a significant impact on health-related quality of life (HRQoL).

Objective: To investigate whether chronic cough is associated with adverse psychological and physical effects on quality of life (QoL) using different HRQoL questionnaires.

Methods: Forty patients were recruited for the study. The diagnostic workup was mainly based on the pathogenic triad in chronic cough: postnasal drip syndrome, asthma, and gastroesophageal reflux disease. The HRQoL was evaluated with the cough-specific quality-of-life questionnaire (CQLQ), Leicester Cough Questionnaire (LCQ), Medical Outcomes Study 36-Item Short-Form Health Survey (SF-36), and Hospital Anxiety and Depression Scale.

Results: Symptom scores were significantly correlated with the CQLQ and LCQ (bgr = .415 and bgr = -.272, respectively) but not with the SF-36. A statistically significant difference was found in all questionnaires, except the physical component summary domain of the SF-36, after specific therapy. Correlation between the 2 specific HRQoL questionnaires was moderate to high when pretreatment and posttreatment scores were compared (r = -0.42 and r = -0.60). Concurrent validity of the LCQ was higher than the CQLQ when compared with the SF-36 domains. The effect size of each specific QoL questionnaire was 1 or higher after treatment, whereas it was much less in the SF-36. There was no change in depression with treatment despite anxiety. Posttreatment symptom scores were related with anxiety (r > 0.40)

Conclusions: Because HRQoL is important to patients, a cough-specific HRQoL instrument, either the CQLQ or LCQ, should be routinely used to optimally evaluate the impact of cough on patients and to evaluate the efficacy of cough-modifying agents.

Document Type: Original article

Affiliations: 1: Department of Pulmonary Diseases, Kinodotrinodotkkale University Faculty of Medicine, Ankara, Turkey.rinodotkkale University Faculty of Medicine, Ankara, Turkey.">

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