Association of central adiposity with psoriasis, psoriatic arthritis and rheumatoid arthritis: a cross-sectional study of the UK Biobank

Ferguson, L. D. , Brown, R., Celis-Morales, C. , Welsh, P. , Lyall, D. M. , Pell, J. P. , McInnes, I. B. , Siebert, S. and Sattar, N. (2019) Association of central adiposity with psoriasis, psoriatic arthritis and rheumatoid arthritis: a cross-sectional study of the UK Biobank. Rheumatology, 58(12), pp. 2137-2142. (doi: 10.1093/rheumatology/kez192) (PMID:31131407) (PMCID:PMC6880847)

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Abstract

Objectives: To determine the independent association of central adiposity, assessed by waist circumference, with odds of psoriasis, PsA and RA prevalence after controlling for general adiposity (BMI). Methods: A cross-sectional study of UK Biobank participants aged 40–70 years was performed. Logistic regression was used to calculate the odds of psoriasis, PsA and RA occurrence compared with controls without these conditions by waist circumference, adjusting for covariates: age, sex, smoking status, socioeconomic deprivation and self-reported physical activity (Model 1), followed additionally by BMI (Model 2). Results: A total of 502 417 participants were included; 5074 with psoriasis (1.02%), 905 with PsA (0.18%), 5532 with RA (1.11%) and 490 906 controls without these conditions. Adjusted odds ratios (ORs) (Model 1) for psoriasis, PsA and RA, per S.D. (13.5 cm) higher waist circumference were 1.20 (95% CI 1.16, 1.23), 1.30 (95% CI 1.21, 1.39) and 1.21 (95% CI 1.17, 1.24), respectively (all P < 0.001). These ORs remained significant after further adjustment for BMI (Model 2) in psoriasis [OR 1.19 (95% CI 1.12, 1.27), P < 0.001] and RA [OR 1.19 (95% CI 1.12, 1.26), P < 0.001], but not in PsA [OR 1.11 (95% CI 0.95, 1.29), P = 0.127]. Conclusion: Central adiposity as measured by waist circumference is associated with greater odds of psoriasis and RA prevalence after adjustment for confounders and for BMI. Our findings add support for central adiposity as a long-term clinically relevant component of these conditions.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:McInnes, Professor Iain and Brown, Miss Rosemary and Ferguson, Dr Lyn and Welsh, Dr Paul and Siebert, Dr Stefan and Celis, Dr Carlos and Pell, Professor Jill and Sattar, Professor Naveed and Lyall, Dr Donald
Authors: Ferguson, L. D., Brown, R., Celis-Morales, C., Welsh, P., Lyall, D. M., Pell, J. P., McInnes, I. B., Siebert, S., and Sattar, N.
College/School:College of Medical Veterinary and Life Sciences > Institute of Cardiovascular and Medical Sciences
College of Medical Veterinary and Life Sciences > Institute of Health and Wellbeing > Public Health
College of Medical Veterinary and Life Sciences > Institute of Infection Immunity and Inflammation
Journal Name:Rheumatology
Publisher:Oxford University Press
ISSN:1462-0324
ISSN (Online):1462-0332
Published Online:25 May 2019
Copyright Holders:Copyright © 2019 The Authors
First Published:First published in Rheumatology 58(12):2137-2142
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
617771BHF centre of excellenceRhian TouyzBritish Heart Foundation (BHF)RE/13/5/30177RI CARDIOVASCULAR & MEDICAL SCIENCES