Trends in annual frequencies of ambulatory medical care utilization over an eight-year period preceding the index date.
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Estimates were adjusted for age, sex and Charlson Comorbidity Index using generalized estimating equation with a Poisson log-linear function.SLE, systemic lupus erythematosus; IRR, incident rate ratio; 95% CI, 95% confidence interval.
创建时间：
2015-12-02
