Fiona Maas1, Suzanne Arends2, Eveline van der Veer2, Freke Wink2, Monique Efde2, Hendrika Bootsma2, Elisabeth Brouwer2, Anneke Spoorenberg2. 1. From the Department of Rheumatology and Clinical Immunology, Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen; Department of Rheumatology, Medical Center Leeuwarden, Leeuwarden, the Netherlands.F. Maas, MSc, Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen; S. Arends, PhD, Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, and Department of Rheumatology, Medical Center Leeuwarden; E. van der Veer, PhD, Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen; F. Wink, MD, Department of Rheumatology, Medical Center Leeuwarden; M. Efde, MD, Department of Rheumatology, Medical Center Leeuwarden; H. Bootsma, MD, PhD, Professor, Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen; E. Brouwer, MD, PhD, Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen; A. Spoorenberg, MD, PhD, Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, Department of Rheumatology, Medical Center Leeuwarden. f.maas@umcg.nl. 2. From the Department of Rheumatology and Clinical Immunology, Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen; Department of Rheumatology, Medical Center Leeuwarden, Leeuwarden, the Netherlands.F. Maas, MSc, Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen; S. Arends, PhD, Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, and Department of Rheumatology, Medical Center Leeuwarden; E. van der Veer, PhD, Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen; F. Wink, MD, Department of Rheumatology, Medical Center Leeuwarden; M. Efde, MD, Department of Rheumatology, Medical Center Leeuwarden; H. Bootsma, MD, PhD, Professor, Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen; E. Brouwer, MD, PhD, Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen; A. Spoorenberg, MD, PhD, Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, Department of Rheumatology, Medical Center Leeuwarden.
Abstract
OBJECTIVE: To assess the prevalence of overweight and obesity in a large cohort of patients with axial spondyloarthritis (axSpA) in comparison with the general population. To explore the relationship of body mass index (BMI) with clinical outcome in axSpA. METHODS: Patients from the Groningen Leeuwarden Axial SpA cohort who visited the outpatient clinic in 2011/2012 were included in this cross-sectional analysis. Body weight, height, disease activity, physical function, and quality of life (QoL) were assessed. Patients were divided into normal weight (BMI < 25 kg/m(2)), overweight (BMI ≥ 25 to < 30 kg/m(2)), and obese (BMI ≥ 30 kg/m(2)). BMI data for the general population in the same demographic region, matched for age and sex, were obtained from the LifeLines Cohort Study. RESULTS: Of the 461 patients with axSpA, 37% were overweight and 22% were obese. In the LifeLines cohort (n = 136,577), 43% were overweight and 15% were obese. Overweight and obese patients were older, had longer symptom duration, and had more comorbidities, especially hypertension. Further, obese patients had significantly higher disease activity, worse physical function, and worse QoL than overweight and normal weight patients (mean Bath Ankylosing Spondylitis Disease Activity Index 4.5, 3.5, 3.8; mean Ankylosing Spondylitis Disease Activity Score 2.8, 2.2, 2.3; median C-reactive protein 5, 3, 3 mg/l; median erythrocyte sedimentation rate 13, 8, 8 mm/h; median Bath Ankylosing Spondylitis Functional Index 5.2, 2.9, 2.9; median Ankylosing Spondylitis QoL Questionnaire 8, 4, 5, respectively). After adjustment for potential confounders, obesity proved to be an independent predictor of worse clinical outcome. CONCLUSION: In this large observational cohort study, obesity is more common in axSpA than in the general population and it is associated with worse clinical outcome.
OBJECTIVE: To assess the prevalence of overweight and obesity in a large cohort of patients with axial spondyloarthritis (axSpA) in comparison with the general population. To explore the relationship of body mass index (BMI) with clinical outcome in axSpA. METHODS:Patients from the Groningen Leeuwarden Axial SpA cohort who visited the outpatient clinic in 2011/2012 were included in this cross-sectional analysis. Body weight, height, disease activity, physical function, and quality of life (QoL) were assessed. Patients were divided into normal weight (BMI < 25 kg/m(2)), overweight (BMI ≥ 25 to < 30 kg/m(2)), and obese (BMI ≥ 30 kg/m(2)). BMI data for the general population in the same demographic region, matched for age and sex, were obtained from the LifeLines Cohort Study. RESULTS: Of the 461 patients with axSpA, 37% were overweight and 22% were obese. In the LifeLines cohort (n = 136,577), 43% were overweight and 15% were obese. Overweight and obesepatients were older, had longer symptom duration, and had more comorbidities, especially hypertension. Further, obesepatients had significantly higher disease activity, worse physical function, and worse QoL than overweight and normal weight patients (mean Bath Ankylosing Spondylitis Disease Activity Index 4.5, 3.5, 3.8; mean Ankylosing Spondylitis Disease Activity Score 2.8, 2.2, 2.3; median C-reactive protein 5, 3, 3 mg/l; median erythrocyte sedimentation rate 13, 8, 8 mm/h; median Bath Ankylosing Spondylitis Functional Index 5.2, 2.9, 2.9; median Ankylosing Spondylitis QoL Questionnaire 8, 4, 5, respectively). After adjustment for potential confounders, obesity proved to be an independent predictor of worse clinical outcome. CONCLUSION: In this large observational cohort study, obesity is more common in axSpA than in the general population and it is associated with worse clinical outcome.
Entities:
Keywords:
AXIAL SPONDYLOARTHRITIS; BODY MASS INDEX; DISEASE ACTIVITY; OBESITY
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