Αρχειοθήκη ιστολογίου

Αλέξανδρος Γ. Σφακιανάκης
ΩτοΡινοΛαρυγγολόγος
Αναπαύσεως 5
Άγιος Νικόλαος Κρήτη 72100
2841026182
6032607174

Τετάρτη 3 Μαΐου 2017

Risk of developing psoriasis in patients with schizophrenia: a nationwide retrospective cohort study

Abstract

Background

Schizophrenia is a complex disease proceeds from an interaction between genetic background and environmental factors. Recent studies showed T helper 17 (Th17) signaling, which is the main downstream immune response of psoriasis, is activated in schizophrenia.

Objective

To investigate if patients with schizophrenia have higher risk of psoriasis.

Methods

In this nationwide retrospective cohort study, we analyzed the 1-million-enroll cohort from Taiwan's National Health Insurance Research Database. Psoriasis and schizophrenia were ascertained by International Classification of Diseases, 9th revision, Clinical Modification coding. The study cohort was comprised of enrollees diagnosed with schizophrenia during the period from January 1, 1996 through December 31, 2010, while the comparison population consisted of enrollees who had not been diagnosed with schizophrenia during the study period. Hazard ratio (HR) and 95% confidence interval (CI) were calculated for the risk of psoriasis associated with schizophrenia using Cox proportional hazards regression.

Results

The adjusted HR of psoriasis associated with schizophrenia was 2.32(95% CI = 1.81-2.98). After 15 years, the cumulative incidence of psoriasis in patients with schizophrenia and comparison population was 2.82% and 1.17%, respectively. The Kaplan-Meier curves for the cumulative incidence of psoriasis in individuals with and without schizophrenia differed significantly(P<0.0001, log-rank test).

Conclusions

Patients with schizophrenia have higher risk of psoriasis, which may be due to common genetic susceptibilities and/or immunologic mechanisms in both diseases. Th17 signaling and pro-inflammatory cytokines may act as a link between these two diseases and are potential therapeutic targets for schizophrenia.

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