141. Common Ground: Intra-Institutional Correlations of Mortality Rates Among High-Risk Pediatric Surgical Specialties

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Mortality is the primary measure used to evaluate surgical care. Unfortunately, differentiation of hospital mortality rates for high-risk surgical procedures in the pediatric population is often limited by small procedure-specific sample sizes. While it has been shown that statistical power can be improved by combining data from multiple operations, this approach is only valuable when performance among the procedures is correlated. We sought to determine the utility of such a strategy in the pediatric surgical arena by calculating the correlations between hospital mortality rates for pediatric surgical specialties.