State-level adjusted ESRD incident rates: use of observed vs model-predicted category-specific rates

Kidney International
J LiuA J Collins

Abstract

Because of differences in case-mix across states, state-level case-mix-adjusted end-stage renal disease (ESRD) incident rates are reported in each United States Renal Data System Annual Data Report to make the across-state comparisons valid. The adjusted rates were estimated by the direct adjustment method, a widely used method for adjusted event rate calculation, based on observed category-specific ESRD incident rates in each state (called the observation-based method). However, when some adjusting categories in a state are small, the adjusted rate and the standard error for this state as estimated by this method may be inaccurate. This report proposes a model-based method that can overcome the disadvantages of the observation-based method and can be extended to continuous adjusting variables. National ESRD incident data and national population data from 1990 to 1999 were used. State-level adjusted ESRD incident rates were estimated by both the observation- and the model-based methods. For the model-based method, a Poisson regression model was used to estimate category-specific ESRD incident rates. For large-population states, both observation- and model-based methods produced similar estimates for adjusted ESRD incident rates...Continue Reading

References

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Jan 1, 2003·Health Services & Outcomes Research Methodology·Jiannong LiuAllan J Collins

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Citations

May 2, 2013·American Journal of Kidney Diseases : the Official Journal of the National Kidney Foundation·Thomas J ArnesonWendy L St Peter
May 3, 2014·Kidney International·Julia J SciallaUNKNOWN DEcIDE Network Patient Outcomes in End Stage Renal Disease Study Investigators
Oct 16, 2015·Journal of the American Heart Association·Gautam R ShroffCharles A Herzog
Jun 15, 2012·MMW Fortschritte der Medizin·A HolsteinH J Rüssmann
Apr 12, 2020·Néphrologie & thérapeutique·Cécile Couchoud, UNKNOWN Commission épidémiologie et santé publique de la Société francophone de néphrologie, dialyse et transplantation

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