Impact of Seasonal Variation on Health-Related Quality of Life and Lung Function among Patients with Bronchial Asthma
DOI:
https://doi.org/10.31674/mjn.2026.v17i05.012Abstract
Background: Seasonal variations may affect asthma symptoms, lung function, and patients’ health-related quality of life (HRQoL). Objectives: This study aimed to examine the association between seasonal variation, HRQoL, and lung function among patients with bronchial asthma. Methods: A descriptive cross-sectional study was conducted among 497 patients attending inpatient and outpatient clinics at the Chest Department of Assiut University Hospital, Egypt. Data were collected through structured interviews, the Mini Asthma Quality of Life Questionnaire (Mini AQLQ), the Lung Function Questionnaire, and spirometry measurements, including forced expiratory volume in one second (FEV₁) and forced vital capacity (FVC). Seasonal variation data were categorized, and both descriptive statistics and bivariate analyses were used to assess the relationships between seasons, respiratory symptoms, lung function, and HRQoL. Results: Respiratory symptoms, including wheezing, cough, and nocturnal breathlessness, were more prevalent during colder seasons. HRQoL scores were lower in winter, while lung function demonstrated modest seasonal variation, with relatively better values observed during warmer months. Conclusion: Seasonal variation is associated with changes in asthma symptoms, lung function, and HRQoL. These findings highlight the importance of considering seasonal environmental factors in the management of bronchial asthma. This study provides novel evidence on the seasonal impact on both physiological and quality-of-life outcomes among asthma patients in Upper Egypt.
Keywords:
Bronchial Asthma, Lung Function, Pulmonary Function, Quality of Life, Seasonal VariationDownloads
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