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What is the absolute risk of developing diabetes mellitus in patients with glucocorticoid-treated polymyalgia rheumatica and giant cell arteritis? a systematic review and meta-analysis

Lai, L, Harris, Emma, West, R.M and Mackie, Sarah L. (2017) What is the absolute risk of developing diabetes mellitus in patients with glucocorticoid-treated polymyalgia rheumatica and giant cell arteritis? a systematic review and meta-analysis. Annals of the Rheumatic Diseases, 76 (Supp 2). p. 613. ISSN 0003-4967

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Abstract

Background: Polymyalgia rheumatica (PMR) and giant cell arteritis (GCA) are treated with glucocorticoids (GCs) but long-term GC use is associated with diabetes mellitus (DM). The absolute incidence of this serious complication in this patient group remains unclear.

Objectives: To quantify the absolute risk of GC-induced DM in PMR and GCA in published literature.

Methods: We identified literature from inception to February 2016 reporting diabetes following exposure to oral GC in patients with PMR and/or GCA without preexisting diabetes. A random-effects meta-analysis was performed to summarise the literature. Risk of bias was assessed using the Cochrane Collaboration tool.

Results: 21 eligible publications were identified. In studies of patients with GCA, mean cumulative GC dose was almost two times higher than in studies of PMR (8.9g vs 5.0g), with slightly longer treatment duration but much longer duration of follow-up (8.8years vs 4.4years). The incidence proportion (cumulative incidence) of patients who developed new-onset DM was 6% (95% CI: 3–9%) for PMR and 12% (95% CI: 8–17%) for GCA. Heterogeneity between studies was high (I2=78.2%), as there were differences in study designs, patient population, geographical locations and treatment strategies. Based on UK data on incidence rate of DM in the general population1, the expected background incidence rate of DM over 4.4 years in PMR patients and 8.8 years in GCA patients (the duration of follow-up) would be 4.8% and 9.7%, respectively. Very little information on predictors of DM in PMR or GCA patients was found. The overall risk of bias was high for many of the observational studies, especially relating to definition and recording of outcome and prognostic variables.

Conclusions: Physicians should screen patients treated for PMR/GCA for DM but it remains unclear what is the time-period of greatest risk and the influence of risk factors. Our meta-analysis produced plausible estimates of DM incidence in patients with PMR and GCA but there is insufficient published data to allow precise quantification of the DM risk or, crucially, which patients are at greatest risk

Item Type: Article
Additional Information: Abstract only published in journal.
Subjects: R Medicine > RZ Other systems of medicine
Schools: School of Human and Health Sciences
Related URLs:
Depositing User: Emma Harris
Date Deposited: 09 Aug 2017 14:12
Last Modified: 10 Aug 2017 06:46
URI: http://eprints.hud.ac.uk/id/eprint/32512

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