• Vasc Health Risk Manag · Jan 2017

    Length of stay, hospitalization cost, and in-hospital mortality in US adult inpatients with immune thrombocytopenic purpura, 2006-2012.

    • Ruopeng An and Peizhong Peter Wang.
    • Department of Kinesiology and Community Health, College of Applied Health Sciences, University of Illinois at Urbana-Champaign, Champaign, IL, USA.
    • Vasc Health Risk Manag. 2017 Jan 1; 13: 15-21.

    PurposeIn this study, we examined the length of stay, hospitalization cost, and risk of in-hospital mortality among US adult inpatients with immune thrombocytopenic purpura (ITP).MethodsWe analyzed nationally representative data obtained from Nationwide/National Inpatient Sample database of discharges from 2006 to 2012.ResultsIn the US, there were an estimated 296,870 (95% confidence interval [CI]: 284,831-308,909) patient discharges recorded for ITP from 2006 to 2012, during which ITP-related hospitalizations had increased steadily by nearly 30%. The average length of stay for an ITP-related hospitalization was found to be 6.02 days (95% CI: 5.93-6.10), which is 28% higher than that of the overall US discharge population (4.70 days, 95% CI: 4.66-4.74). The average cost of ITP-related hospitalizations was found to be US$16,594 (95% CI: US$16,257-US$16,931), which is 48% higher than that of the overall US discharge population (US$11,200; 95% CI: US$11,033-US$11,368). Gender- and age-adjusted mortality risk in inpatients with ITP was 22% (95% CI: 19%-24%) higher than that of the overall US discharge population. Across diagnosis related groups, length of stay for ITP-related hospitalizations was longest for septicemia (7.97 days, 95% CI: 7.55-8.39) and splenectomy (7.40 days, 95% CI: 6.94-7.86). Splenectomy (US$25,262; 95% CI: US$24,044-US$26,481) and septicemia (US$18,430; 95% CI: US$17,353-US$19,507) were associated with the highest cost of hospitalization. The prevalence of mortality in ITP-related hospitalizations was highest for septicemia (11.11%, 95% CI: 9.60%-12.63%) and intracranial hemorrhage (9.71%, 95% CI: 7.65%-11.77%).ConclusionInpatients with ITP had longer hospital stay, bore higher costs, and faced greater risk of mortality than the overall US discharge population.

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