• Ruth Ann Marrie, Charles N Bernstein, Christine A Peschken, Carol A Hitchon, Hui Chen, and Allan Garland.
• 1 Department of Internal Medicine, University of Manitoba, Winnipeg, Canada.
• J Cutan Med Surg. 2017 Sep 1; 21 (5): 395-400.

BackgroundPsoriasis is associated with an increased risk of comorbid disease. Despite the recognition of increased morbidity in psoriasis, the effects on health care utilisation remain incompletely understood. Little is known about the risk of intensive care unit (ICU) admission in persons with psoriasis.ObjectiveTo compare the incidence of ICU admission and post-ICU mortality rates in a psoriasis population compared with a matched population without psoriasis.MethodsUsing population-based administrative data from Manitoba, Canada, we identified 40 930 prevalent cases of psoriasis and an age-, sex-, and geographically matched cohort from the general population (n = 150 210). We compared the incidence of ICU admission between populations using incidence rates and Cox regression models adjusted for age, sex, socioeconomic status, and comorbidity and compared mortality after ICU admission.ResultsAmong incident psoriasis cases (n = 30 150), the cumulative 10-year incidence of ICU admission was 5.6% (95% confidence interval [CI], 5.3%-5.8%), 21% higher than in the matched cohort (incidence rate ratio, 1.21; 95% CI, 1.15-1.27). In the prevalent psoriasis cohort, crude mortality in the ICU was 11.5% (95% CI, 9.9%-13.0%), 32% higher than observed in the matched population admitted to the ICU (8.7%; 95% CI, 8.3%-9.1%). Mortality rates after ICU admission remained elevated at all time points in the psoriasis cohort compared with the matched cohort.ConclusionPsoriasis is associated with an increased risk for ICU admission and with an increased risk of mortality post-ICU admission.

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