Louis G, Pétré B, Schleich F, Zahraei HN, Donneau AF, Silvestre A, Henket M, Paulus V, Guissard F, Guillaume M, Louis R. Predictors of asthma-related quality of life in a large cohort of asthmatics: A cross-sectional study in a secondary care center.
Clin Transl Allergy 2021;
11:e12054. [PMID:
34504679 PMCID:
PMC8414513 DOI:
10.1002/clt2.12054]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 05/26/2021] [Accepted: 08/09/2021] [Indexed: 11/08/2022] Open
Abstract
Background
In recent decades, asthma-related quality of life questionnaires have joined objective clinical indicators as important outcome measures. In this study, we sought to investigate the predictors of asthma-related quality of life in a large cohort of patients recruited from a secondary care center.
Methods
We conducted a cross-sectional study on asthmatics (N = 1301) recruited from the Liège University Hospital asthma clinic (Belgium). After performing a descriptive analysis highlighting the distribution of scores from the Mini Asthma Quality of Life Questionnaire (Mini AQLQ) and its four dimensions (symptoms, activity limitation, emotional function, and environmental stimuli), we did multiple regression analysis to identify the independent predictors of AQLQ.
Results
Multiple regression beta analysis showed that AQLQ and its four dimensions were primarily associated with asthma control (p < 0.0001 in all instances). Female gender was associated with a lower score for the AQLQ's activity and environmental dimensions (p < 0.05 for both), while current smokers had a higher score on the AQLQ's environmental dimension (p < 0.0001). The burden of asthma treatment was associated with a lower score for the AQLQ's emotional (p < 0.05) and environmental (p < 0.05) dimensions. BMI was associated with a lower score in the AQLQ's activity dimension (p < 0.0001), while the opposite was true for the FeNO test (p < 0.0001). Sputum neutrophils were inversely related to the score for the AQLQ's symptom dimension (p < 0.05), whereas post-bronchodilator FEV1 showed a positive relationship for that same dimension (p < 0.05).
Conclusion
Asthma control is the main predictor of AQLQ score and impacts all its dimensions, but demographic, functional, and airway inflammatory parameters may also influence some dimensions of the AQLQ.
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