Pediatric Inpatient-Status Volume and Cost at Children's and Nonchildren's Hospitals in the United States: 2000-2009.

Abstract

The evolving role of children's hospitals (CHs) in the setting of rising health care costs has not been fully explored. We compared pediatric inpatient discharge volumes and costs by hospital type and examined the impact of care complexity and hospital-level factors on costs. A retrospective, cross-sectional study of care between 2000 and 2009 was performed by using the Kids' Inpatient Database. Weighted discharge data were used to generate national estimates for a comparison of inpatient volume, cost, and complexity at CHs and nonchildren's hospitals (NCHs). Linear regression was used to assess how complexity, payer mix, and hospital-level characteristics affected inflation-adjusted costs. Between 2000 and 2009, the number of discharges per 1000 children increased from 6.3 to 7.7 at CHs and dropped from 55.4 to 53.3 at NCHs. The proportion of discharges at CHs grew by 6.8% between 2006 and 2009 alone. In 2009, CHs were responsible for 12.6% (95% confidence interval: 10.4%-14.9%) of pediatric discharges and 14.7% of major therapeutic procedures, yet they accounted for 23.0% of inpatient costs. Costs per discharge were significantly higher at CHs than at NCHs for all years (P < .001); however, the increase in costs seen over time was not significant. Care complexity increased during the study period at both CHs and NCH, but it could not be used to fully account for the difference in costs. National trends reveal a small rise in both the proportion of inpatient discharges and the hospital costs at CHs, with costs being significantly higher at CHs than at NCHs. Research into factors influencing costs and the role of CHs is needed to inform policy and contain costs.