Abstract
BACKGROUND
Polymyalgia rheumatica (PMR) is a relatively common rheumatic disease, particularly in the elderly. Vasculitis is associated
with PMR and theoretically makes such patients susceptible to vascular events such as stroke. This study aims to explore the
frequency and risk of stroke among patients with PMR through a population-based case-controlled study.
METHODS
The study included 781 patients with PMR from the Taiwan Longitudinal Health Insurance Database between 2001 and 2005. We
randomly extracted 3,905 other patients, matched with the study group in terms of sex and age, as a control population. Each
subject was individually tracked for a three-year period to identify those who had strokes. Stratified Cox proportional hazard
regression was employed to evaluate the risk of stroke, after adjusting for socio-demographic characteristics and comorbidities.
RESULTS
We found that 386 out of 4,686 sampled patients (8.24%) had stroke during the three-year follow-up period, including 113 patients
with PMR (14.47% of the PMR group) and 273 controls (6.98% of the control group). The stratified Cox proportional hazard regression
showed that the adjusted hazard ratio of stroke for patients with PMR was 2.09 times that of controls (95% CI = 1.63-2.66,
p <0.001), after adjusting for socio-demographic characteristics and comorbidities.
CONCLUSIONS
PMR was associated with a significantly higher risk of stroke in the three-year follow-up period. Physicians should be aware
of this potential association in clinical settings.
Links
Authors
Institution
Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.
Source
Cerebrovascular diseases (Basel, Switzerland) 32:5 2011 pg 497-503MeSH
AgedAsian Continental Ancestry Group
Case-Control Studies
Female
Follow-Up Studies
Humans
Longitudinal Studies
Male
Middle Aged
Polymyalgia Rheumatica
Proportional Hazards Models
Retrospective Studies
Risk Factors
Stroke
Taiwan
Vasculitis
Pub Type(s)
Journal ArticleLanguage
eng
PubMed ID
22057203
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