Adaptation and application of the Agency for Healthcare Research and Quality's asthma admission rate pediatric quality indicator to Ohio Medicaid claims data
BACKGROUND: The U.S. Agency for Healthcare Research and Quality (AHRQ) developed, in the context of a national pediatric discharge database, 18 pediatric quality indicators (PDIs) for assessing pediatric care. These measures have not yet been adapted for and applied to claims databases. OBJECTIVES: The objectives of this study were to (1) adapt the asthma admission rate (AAR) PDI methodology for claims data; (2) calculate AARs for Ohio Medicaid beneficiaries for 2007-2009, overall as well as by patient and regional characteristics; (3) determine the cost and length of stay associated with these hospitalizations; (4) describe medication use for 90 days before the hospitalizations; and (5) estimate the effect of asthma prevalence rates on AARs across Ohio counties. METHODS: A retrospective study was performed using Ohio Medicaid claims data. After adapting the AHRQ methodology for a claims database, AARs were computed for the pediatric asthma population (aged 2-17 years). Total and mean costs and days spent in the hospital were calculated. A Poisson regression model was developed to estimate the effect of asthma prevalence on the AAR. RESULTS: Between 2007 and 2009, the Ohio Medicaid AAR rose from 182 to 258 per 100,000 children. Costs (in 2009$) rose from $1,069,783 to $1,470,918, whereas hospital days increased from 672 to 815. Close to 70% of patients had no claims for a maintenance medication for 90 days before their hospitalization. The asthma prevalence rate was significantly associated with the AAR. CONCLUSIONS: The remaining 17 PDIs could also be adapted for claims data to assess the quality of pediatric care.
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