• William F Bond, Minchul Kim, Chris M Franciskovich, Jason E Weinberg, Jessica D Svendsen, Linda S Fehr, Amy Funk, Robert Sawicki, and Carl V Asche.
• 1 Jump Simulation, OSF HealthCare , Peoria, Illinois.
• J Palliat Med. 2018 Apr 1; 21 (4): 489502489-502.

BackgroundAdvance care planning (ACP) documents patient wishes and increases awareness of palliative care options.ObjectiveTo study the association of outpatient ACP with advanced directive documentation, utilization, and costs of care.DesignThis was a case-control study of cases with ACP who died matched 1:1 with controls. We used 12 months of data pre-ACP/prematch and predeath. We compared rates of documentation with logit model regression and conducted a difference-in-difference analysis using generalized linear models for utilization and costs.Setting/SubjectsMedicare beneficiaries attributed to a large rural-suburban-small metro multisite accountable care organization from January 2013 to April 2016, with cross reference to ACP facilitator logs to find cases.MeasurementsThe presence of advance directive forms was verified by chart review. Cost analysis included all utilization and costs billed to Medicare.ResultsWe matched 325 cases and 325 controls (51.1% female and 48.9% male, mean age 81). 320/325 (98.5%) ACP versus 243/325 (74.8%) of controls had a Healthcare Power of Attorney (odds ratio [OR] 21.6, 95% CI 8.6-54.1) and 172/325(52.9%) ACP versus 145/325 (44.6%) controls had Practitioner Orders for Life Sustaining Treatment (OR 1.40, 95% CI 1.02-1.90) post-ACP/postmatch. Adjusted results showed ACP cases had fewer inpatient admissions (-0.37 admissions, 95% CI -0.66 to -0.08), and inpatient days (-3.66 days, 95% CI -6.23 to -1.09), with no differences in hospice, hospice days, skilled nursing facility use, home health use, 30-day readmissions, or emergency department visits. Adjusted costs were $9,500 lower in the ACP group (95% CI -$16,207 to -$2,793).ConclusionsACP increases documentation and was associated with a reduction in overall costs driven primarily by a reduction in inpatient utilization. Our data set was limited by small numbers of minorities and cancer patients.

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