• Arch Surg · Nov 2011

    Comparative Study

    Differential association of race with treatment and outcomes in Medicare patients undergoing diverticulitis surgery.

    • Eric B Schneider, Adil Haider, Amy J Sheer, Hali L Hambridge, David C Chang, Jodi B Segal, Albert W Wu, and Anne O Lidor.
    • Center for Surgical Trials and Outcomes Research, Department of Surgery, The Johns Hopkins School of Medicine, 600 N Wolfe St, Harvey Ste 611, Baltimore, MD 21287, USA. eschnei1@jhmi.edu
    • Arch Surg. 2011 Nov 1;146(11):1272-6.

    BackgroundObserved racial disparities in diverticulitis surgery have been attributed to differences in health insurance status and medical comorbidity.ObjectiveTo examine disparities in procedure type (elective vs urgent/emergency) and mortality in patients with surgically treated diverticulitis insured by Medicare, accounting for comorbidities.DesignRetrospective analysis of Medicare Provider Analysis and Review inpatient data.PatientsAll blacks and whites 65 years and older undergoing surgical treatment for primary diverticulitis with complete admission and outcome data were eligible.Main Outcome MeasuresIn-hospital mortality was examined across procedure categories (elective vs urgent/emergency). Multivariable regression controlled for age, sex, and medical comorbidity (Charlson Comorbidity Index).ResultsA total of 49 937 whites and 2283 blacks met the study criteria. Blacks were slightly younger (74.7 vs 75.5 years, P < .001) and more likely to be female (75.2% vs 69.8%, P < .001). Blacks carried greater comorbidity than did whites (mean Charlson Comorbidity Index score: 0.98 vs 0.87, P < .001); 67.8% of blacks vs 54.7% of whites (P < .001) were urgent/emergency. After adjustment, blacks demonstrated 26% greater risk of urgent/emergency admission (relative risk, 1.26; 95% CI, 1.22-1.30). Black race was also associated with a 28% greater risk of mortality (relative risk, 1.28; 95% CI, 1.10-1.51).ConclusionsBlacks underwent urgent/emergency surgery more often than did whites. Blacks demonstrated significantly increased mortality risk after controlling for age, sex, and comorbidities. These findings suggest that observed racial disparities encompass more than just insurance status and medical comorbidity. Mechanisms leading to worse outcomes for blacks must be elucidated.

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