<p><strong>OBJECTIVE: </strong>To assess the timing of pediatric asthma rehospitalization, variation in rate of rehospitalization across hospitals, and factors associated with rehospitalization at different intervals.</p>

<p><strong>STUDY DESIGN: </strong>Retrospective cohort analysis of 44,204 hospitalizations for children with asthma within 42 children's hospitals between July 2008 and June 2011. The main outcome measures were rehospitalization for asthma within 7, 15, 30, 60, 180, and 365 days of an index asthma admission.</p>

<p><strong>RESULTS: </strong>The rate of asthma rehospitalization ranged from 0.5% (n = 208) at 7 days to 17.2% (n = 7603) at 365 days. Black patients and patients with public insurance had higher odds of rehospitalization at 60 days and beyond (P ≤ .01 for both). Adolescents (12- to 18-year-old), patients with a diagnosis of a complex chronic condition, and patients with a prior year asthma admission had higher odds of rehospitalization at every time interval (P ≤ .001 for all). Significant hospital variation in case-mix adjusted rates of rehospitalization existed at each time interval (P ≤ .01 for all). Rates at 365 days were ≤ 10.9% for the top 10% of hospitals; if all hospitals achieved this rate, 36.6% of rehospitalizations might have been avoided.</p>

<p><strong>CONCLUSIONS: </strong>Significant variation in asthma rehospitalization rates exists across children's hospitals from 7 to 365 days after an index admission. Racial/ethnic and economic disparities emerge at 60 days. By 1 year, rehospitalizations account for 1 in 6 hospitalizations. Assessing asthma rehospitalizations at longer intervals may augment our current understanding of and approach to post-hospitalization care improvement.</p>

<p><strong>BACKGROUND AND OBJECTIVES: </strong>Although many adults experience resource-intensive and costly health care in the last year of life, less is known about these health care experiences in children with life-threatening complex chronic conditions (LT-CCCs). We assessed hospital resource use in children by type and number of LT-CCCs.</p>

<p><strong>METHODS: </strong>A retrospective analysis of 1252 children with LT-CCCs, ages 1 to 18 years, who died in 2012 within 40 US children's hospitals of the Pediatric Health Information System database. LT-CCCs were identified with International Classification of Diseases, 9th Revision, Clinical Modification codes. Using generalized linear models, we assessed hospital admissions, days, costs, and interventions (mechanical ventilation and surgeries) in the last year of life by type and number of LT-CCCs.</p>

<p><strong>RESULTS: </strong>In the last year of life, children with LT-CCCs experienced a median of 2 admissions (interquartile range [IQR] 1-5), 27 hospital days (IQR 7-84), and $142 562 (IQR $45 270-$410 087) in hospital costs. During the terminal admission, 76% (n = 946) were mechanically ventilated; 36% (n = 453) underwent surgery. Hospital use was greatest (P &lt; .001) among children with hematologic/immunologic conditions (99 hospital days [IQR 51-146]; cost = $504 145 [IQR $250 147-$879 331]) and children with ≥3 LT-CCCs (75 hospital days [IQR 28-132]; cost = $341 222 [IQR $146 698-$686 585]).</p>

<p><strong>CONCLUSIONS: </strong>Hospital use for children with LT-CCCs in the last year of life varies significantly across the type and number of conditions. Children with hematologic/immunologic or multiple conditions have the greatest hospital use. This information may be useful for clinicians striving to improve care for children with LT-CCCs nearing the end of life.</p>