| Sumario: | Purpose: To identify patterns of healthcare utilization in allogeneic and autologous hematopoietic stem cell transplantation (HSCT) recipients and evaluate factors associated with high-need and high-cost post-transplantation care.Methods: Latent class analysis of a retrospective cohort of long-term allogeneic (n = 436) and autologous (n = 888) HSCT survivors within the Truven MarketScan database (2009-2014). We assessed factors associated with the latent classes by comparing post-transplantation healthcare utilization including inpatient admissions and length of stay, emergency room visits, specialist visits, and primary care provider visits.Results: Four utilization classes were identified in allogeneic and autologous HSCT recipients: (i) outpatient specialist care dominant (51.8% and 57.3%), (ii) outpatient primary care dominant (10.3% and 25.7%), (iii) outpatient/inpatient balanced (20.6% and 13.5%), and (iv) inpatient dominant (17.2% and 3.5%). Mean monthly healthcare expenditures in the inpatient dominant utilization class were $41,097 and $25,556 for allogeneic and autologous survivors, respectively, which were two to five times higher compared with other classes during the 2-year post-transplantation period. Factors associated with the high utilization class were transfusion (OR = 1.87, 95% CI 1.06-3.30) and 100-day post-transplant graft-versus-host-disease (OR = 1.76, 95% CI 1.05-2.94) in allogeneic HSCT; higher baseline Charlson comorbidity index (OR = 1.45, 95% CI 1.19-1.76) in autologous HSCT.Conclusion: Based on distinct patterns of healthcare utilization following HSCT, we identified factors associated with higher resource utilization and greater healthcare related expenditures.Implications For Cancer Survivors: Earlier identification of high-cost and high-need HSCT long-term survivors could pave the way for clinicians to offer more continuous engagement in survivorship care delivery.
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