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Increased Risk of Shingles with Inflammatory Myositis

Oct 08, 2015 1:37 pm

A study from the Taiwan National Health Insurance examined 2023 patients with new diagnoses of dermatomyositis or polymyositis and population controls and examined the frequency of Herpes zoster.

The incidence of HZ in the myositis and control cohorts was 35.8 and 7.01 per 1000 person-years, respectively. The exposure cohort had a significantly higher risk of HZ than did the control cohort (adjusted hazard ratio [HR] = 3.90, 95% confidence interval [CI] = 3.18-4.77).

The findings from this population-based retrospective cohort study suggest that DM or PM is associated with an increased risk of subsequent HZ. A synergistic effect was observed between DM or PM and one of the comorbidities.

The author has no conflicts of interest to disclose related to this subject

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