Thirty-day readmissions in metastatic cancer patients: Room for improvement?

Abstract

6541 Background: To date, cancer has been excused from most readmission reduction efforts. Yet reported readmission rates for cancer patients discharged from medical services are as high as 27%. Some readmissions for patients with metastatic disease may be avoidable. We assessed the prevalence of potentially preventable readmissions and associated factors in adult patients with metastatic cancer. Methods: We measured 30 day readmissions for dehydration, cancer-related pain, and failure to thrive in patients with primary diagnosis metastatic cancer on index admission to a New York State hospital between December 1, 2012 and December 31, 2014. We used competing risk models to assess the effects of demographics, comorbidities, hospital type, payor, and discharge disposition. Results: During the study period, 11,275 patients had 19,307 index hospitalizations with primary diagnosis, metastatic cancer. The 30 day readmission rate was 24.5% of which 8.9% (424) were potentially preventable. Black (HR 1.26, 1.17-1.35) and Hispanic patients (HR 1.19, 1.09-1.31) had higher rates of readmission than whites. Being older (HR per 10 years of age 0.94, 0.90-0.97), female (HR 0.95, 0.91-0.99), having private insurance (HR 0.87, 0.87-0.81) and discharge to hospice (HR 0.62, 0.42-0.91) decreased risk of readmission. Discharge home with services (HR 1.21, 1.14-1.27) or to a skilled nursing facility (SNF) (HR 1.11, 1.01-1.23) conferred higher risk than going home unaided. Index hospitalization at public hospitals increased risk (HR 1.1, 1.02-1.18); teaching hospitals were protective (HR 0.84, 0.774-0.92). Patients with potentially preventable readmissions were younger (HR per 10 years of age 0.85, 0.78-0.93). Compared to those who went home unaided, patients discharged with services were more likely (HR 1.31, 1.05-1.64) and those discharged to SNF were less likely to have avoidable returns (HR 0.55, 0.37-0.81). Payor, gender, race, comorbidities, and index hospital type did not contribute. Conclusions: While the overall rate of potentially preventable admissions among metastatic cancer patients is low, higher readmission rates among those discharged home with help suggests that services supplied are not sufficient to address their health needs.