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. 2021 Nov;58(11):1544-1553.
doi: 10.1080/02770903.2020.1808989. Epub 2020 Aug 24.

Impact of psychological impairment on quality of life and work impairment in severe asthma

Adriel Shao En Ong  1 , Adrian Kwok Wai Chan  1   2 , Rehena Sultana  1 , Mariko Siyue Koh  1   2
Affiliations

Impact of psychological impairment on quality of life and work impairment in severe asthma

Adriel Shao En Ong et al. J Asthma. 2021 Nov.

Abstract

Background: Psychological impairment, such as anxiety and depression, is common in severe asthma. However, the impact of psychological impairment on asthma-specific quality of life (ASQOL) and work impairment has not been assessed within Southeast-Asia. Furthermore, previous ASQOL questionnaires contained items overlapping with asthma control, making it challenging to isolate the relationship between psychological impairment with ASQOL and asthma control, respectively.

Objective: To evaluate the relationship between psychological impairment with ASQOL and work impairment in severe asthma.

Methods: This is a cross-sectional study of severe asthma at Singapore General Hospital. We assessed ASQOL, psychological impairment, work impairment and asthma control using validated questionnaires. An ASQOL questionnaire not containing items evaluating asthma symptoms was selected to reduce overlap with asthma control. Medical records were used to obtain other asthma characteristics and healthcare utilization patterns.

Results: Amongst 111 patients, 37% had psychological impairment based on Hospital Anxiety and Depression Scale. Poorer ASQOL was associated with anxiety (p = .013) after controlling for demographic characteristics, asthma control and comorbidities. Anxiety symptoms were associated with greater health concerns while depression symptoms were associated with sleep difficulty and physical limitations. Having depressive symptoms was associated with an additional 16% impairment of total work hours (p = .038). Psychological impairment was not associated with spirometry results or healthcare utilization. Ethnicity significantly predicted both ASQOL and work impairment.

Conclusions: In severe asthma, patients with psychological impairment have poorer ASQOL and greater work impairment than those without psychological impairment. There is an urgent need to mitigate this problem.

Keywords: Anxiety; asthma; depression; presenteeism; quality of life.

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