Comparison group selection in the presence of rolling entry for health services research: Rolling entry matching.

ABSTRACT:

Objective

To demonstrate rolling entry matching (REM), a new statistical method, for comparison group selection in the context of staggered nonuniform participant entry in nonrandomized interventions.

Study setting

Four Health Care Innovation Award (HCIA) interventions between 2012 and 2016.

Study design

Center for Medicare and Medicaid Innovation HCIA participants entering these interventions over time were matched with nonparticipants who exhibited a similar pattern of health care use and expenditures during each participant's baseline period.

Data extraction methods

Medicare fee-for-service claims data were used to identify nonparticipating, fee-for-service beneficiaries as a potential comparison group and conduct REM.

Principal findings

Rolling entry

SUBMITTER: Witman A 

PROVIDER: S-EPMC6407360 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature