期刊
RHEUMATOLOGY
卷 60, 期 3, 页码 1260-1272出版社
OXFORD UNIV PRESS
DOI: 10.1093/rheumatology/keaa453
关键词
SLE; health-related quality of life; obesity; patient-reported outcomes
类别
资金
- GlaxoSmithKline
- Swedish Rheumatism Association [R-932236]
- Professor Nanna Svartz Foundation [2019-00290]
- Ulla and Roland Gustafsson Foundation
- King Gustaf V 80-year Anniversary Foundation [FAI-2019-0635]
- Region Stockholm
- Karolinska Institutet
This study found that overweight and obesity in SLE patients can lead to significant decreases in HRQoL in terms of physical, fatigue, and social functioning. Moreover, these impacts become more pronounced with increasing BMI.
Objectives. Associations between BMI and health-related quality of life (HRQoL) in SLE have been implied, but data are scarce. We determined the impact of overweight and obesity on HRQoL in a large SLE population. Methods. We pooled cross-sectional baseline data from the BLISS-52 (NCT00424476) and BLISS-76 (NCT00410384) trials (N = 1684). HRQoL was evaluated using the 36-item Short Form Health Survey (SF-36), Functional Assessment of Chronic Illness Therapy (FACIT)-Fatigue scale and the European Quality of Life 5-dimension questionnaire (EQ-5D). Comparisons between BMI groups were conducted using the MannWhitney U test and adjustments using linear regression. Clinical relevance was determined by minimal clinically important differences (MCIDs). Results. In total, 43.2% of the patients had BMI above normal and 17.4% were obese. Overweight and obese patients reported worse SF-36 physical component summary (PCS), physical functioning, role physical, bodily pain and FACIT-Fatigue scores than normal weight patients. Divergences were greater than corresponding MCIDs and more prominent with increasing BMI. Despite no clinically important difference in SF-36 mental component summary scores across BMI categories, patients experienced progressively diminished vitality and social functioning with increasing BMI. In linear regression analysis, BMI above normal and obesity were associated with worse PCS (standardized coefficient beta = -0.10, P < 0.001 and beta = -0.17, P < 0.001, respectively), FACIT-Fatigue (beta = -0.11, P < 0.001 and beta = -0.16, P < 0.001) and EQ-5D (beta = -0.08, P = 0.001 and beta = -0.12, P < 0.001) scores, independently of demographic and disease-related factors. The impact of BMI on the PCS and FACIT-Fatigue was more pronounced than that of SLE activity. Conclusion. Patients with SLE and BMI above normal experienced clinically important HRQoL diminutions in physical aspects, fatigue and social functioning. A survey of potential causality underlying this association is warranted.
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