• J. Clin. Endocrinol. Metab. · Apr 2019

    Dose dependency of iatrogenic glucocorticoid excess and adrenal insufficiency and mortality: a cohort study in England.

    • Teumzghi F Mebrahtu, Ann W Morgan, Adam Keeley, Paul D Baxter, Paul M Stewart, and Mar Pujades-Rodriguez.
    • Leeds Institute of Biomedical and Clinical Sciences, School of Medicine, University of Leeds, UK.
    • J. Clin. Endocrinol. Metab. 2019 Apr 22.

    ContextAdrenal insufficiency and Cushing's syndrome are known adverse events of glucocorticoids. However, no population estimates of dose-related risks are available.ObjectiveTo investigate dose-related risks of adrenal dysfunction and death in adults with six chronic inflammatory diseases treated with oral glucocorticoids.Design And SettingRetrospective record-linkage open-cohort study spanning primary and hospital care in England.Patients70,638 people oral glucocorticoid-users and 41,166 non-users aged ≥18 years registered in 389 practices in 1998-2017.Main Outcome MeasuresIncidence rates and hazard ratios (HRs) of diagnosed adrenal dysfunction and death.ResultsDuring a median follow-up of 5.5 years, 183 patients had glucocorticoid-induced adrenal insufficiency and 248 glucocorticoid-induced Cushing's syndrome. A total of 22,317 (31.6%) and 7,544 (18.3%) deaths occurred amongst glucocorticoid users and non-users, respectively. Incidence of all outcomes increased with higher current daily and cumulative doses. For adrenal insufficiency, the increases in HRs were of 1.07 (95% CI 1.04-1.09) for every increase of 5mg per day and of 2.25 (95% CI 2.15-2.35) per 1000mg of cumulative prednisolone-equivalent dose over the past year. The respective increases in HRs for Cushing's syndrome were of 1.09 (95% CI 1.08-1.11) and 2.31 (95% CI 2.23-2.40) and for mortality of 1.26 (95% CI 2.24-1.28) and 2.05 (95% CI 2.04-2.06).ConclusionWe report a high glucocorticoid dose-dependent increased risk of adrenal adverse events and death. The low observed absolute risk of adrenal insufficiency highlights a potential lack of awareness, and a need for increased physician and patient education about the risks of adrenal dysfunction induced by glucocorticoids.Copyright © 2019 Endocrine Society.

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