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- W2560088324 abstract "292 Background: Surgical resection is the mainstay of treatment for early, localized HBC. Prior studies consistently show an association between procedure volumes and cancer outcomes, but the impact of surgeon and physician density is unclear. Our aims were to 1) examine the effects of GS and GA density on HBC mortality and 2) compare the relative importance of GS versus GA density on HBC outcomes. Methods: Using county-level data from the Area Resource File, US Census, and National Cancer Institute, we developed both multivariate linear and logistic regression models to determine the effect of GS and GA density on overall HBC mortality between 2002 and 2006, while controlling for cancer incidence, county demographics and socioeconomic factors. Results: In total, 793 counties were analyzed: mean HBC incidence and mortality were 5.89 and 5.34 per 100,000 persons, respectively; 77% were metropolitan; mean GS and GA densities were 10.6 and 3.5 per 100,000 people, respectively. When compared to counties with no GS, those with at least one had a statistically significant decrease in HBC-specific mortality (beta coefficient -.115; p=.001). In contrast, when compared to counties with no GA, those with at least one showed a trend towards lower mortality (beta coefficient -.0677; p=.065). Increasing the county-level density of GS and GA improved outcomes, but increases beyond 10 GS or 4 GA per 100,000 people did not continue to result in significant reductions in HBC mortality; rather, these showed an increase in HBC mortality. Conclusions: Reductions in HBC mortality are more strongly influenced by increasing GS than GA density. There appears to be a ceiling effect at which point increasing GS and GA density does not appear to result in improvements in HBC outcomes. A strategy of allocating healthcare resources and distributing the workforce across counties will optimize outcomes at the population-level." @default.
- W2560088324 created "2016-12-16" @default.
- W2560088324 creator A5031624418 @default.
- W2560088324 creator A5039850848 @default.
- W2560088324 date "2012-02-01" @default.
- W2560088324 modified "2023-09-23" @default.
- W2560088324 title "Associations between county-level general surgeon (GS) and gastroenterologist (GA) density and outcomes for hepatobiliary cancer (HBC)." @default.
- W2560088324 doi "https://doi.org/10.1200/jco.2012.30.4_suppl.292" @default.
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