Burden of comorbidity in systemic lupus erythematosus in the UK, 1999–2012

Rees, Frances, Doherty, Michael, Grainge, Matthew, Lanyon, Peter, Davenport, Graham and Zhang, Weiya (2016) Burden of comorbidity in systemic lupus erythematosus in the UK, 1999–2012. Arthritis Care & Research, 68 (6). pp. 819-827. ISSN 2151-4658

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Abstract

Objective: To estimate the comorbidity associated with systemic lupus erythematosus (SLE) in the UK during 1999–2012.

Methods: A retrospective cohort study using the UK Clinical Practice Research Datalink was conducted. Prevalent cases of SLE were matched by age, sex, and practice to 4 controls. The incidence of cardiovascular disease (CVD), stroke, end-stage renal failure (ESRF), cancer, osteoporosis, and infection were calculated per 1,000 person-years during the study period and compared to controls using Poisson regression to obtain incidence rate ratios (IRRs). IRRs were adjusted for baseline age, sex, body mass index, smoking status, alcohol intake, hypertension, hyperlipidemia, Charlson Index scores, and prednisolone use. Age- and sex-specific incidence rates were calculated.

Results: When comparing the 7,732 prevalent cases of SLE with 28,079 matched controls, the unadjusted IRR was 1.98 (95% confidence interval [95% CI] 1.69–2.31) for CVD, 1.81 (95% CI 1.49–2.19) for stroke, 7.81 (95% CI 4.68–13.05) for ESRF, 1.28 (95% CI 1.17–1.40) for cancer, 2.53 (95% CI 2.27–2.82) for osteoporosis, and 1.49 (95% CI 1.40–1.58) for infection. After adjustment, the rates remained significantly higher in cases. Men with SLE had higher rates of CVD, stroke, and cancer, whereas women had higher rates of infection and osteoporosis. Those at younger ages were at the greatest relative risk compared with controls. Cases had significantly higher Charlson Index scores at baseline.

Conclusion: People with SLE in the UK have a greater burden of comorbidity and are more likely to develop CVD, stroke, ESRF, cancer, osteoporosis, and infection than people of the same age and sex.

Item Type: Article
RIS ID: https://nottingham-repository.worktribe.com/output/788615
Schools/Departments: University of Nottingham, UK > Faculty of Medicine and Health Sciences > School of Medicine > Division of Epidemiology and Public Health
University of Nottingham, UK > Faculty of Medicine and Health Sciences > School of Medicine > Division of Rheumatology, Orthopaedics and Dermatology
Identification Number: https://doi.org/10.1002/acr.22751
Depositing User: Claringburn, Tara
Date Deposited: 10 Feb 2017 11:26
Last Modified: 04 May 2020 17:50
URI: https://eprints.nottingham.ac.uk/id/eprint/40504

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