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Guidelines recommend transfer to adult health care within 6 months of completing pediatric care; however, this has not been studied in sickle cell disease (SCD). We hypothesized that longer transfer gaps are associated with increased resource utilization. Transfer gaps were defined as the time between the last pediatric and first adult visits. We estimated the association between varying transfer gaps and the rates of inpatient, emergency department (ED), and outpatient visits, using negative binomial regression. Health care utilization was evaluated in a mid-south comprehensive program for a follow-up period of up to 8 years (2012-2020) and was restricted to the first 2 years of adult health care. In total, 183 young adults (YAs) with SCD (51% male, 67% HbSS/HbSβ0-thalassemia) were transferred to adult health care between 2012 and 2018. YAs with transfer gaps ≥6 months compared with <2 months had 2.01 (95% confidence interval CI, 1.31-3.11) times the rate of hospitalizations in the 8-year follow-up and 1.89 (95% CI, 1.17-3.04) when restricted to the first 2 years of adult health care. In the first 2 years of adult care, those with transfer gaps ≥6 months compared with <2 months, had 1.75 (95% CI, 1.10-2.80) times the rate of ED encounters. Those with gaps ≥2 to <6 months compared with <2 months had 0.71 (95 % CI, 0.53-0.95) times the rate of outpatient visits. Among YAs with SCD, a longer transfer gap was associated with increased inpatient and decreased outpatient encounters in adult health care and more ED encounters in the first 2 years of adult health care. Strategies to reduce the transfer gaps are needed.
Howell et al. (Wed,) studied this question.