Abstract
Objective: To evaluate the veracity of self-reports of month-level health insurance coverage in the Current Population Survey Annual Social and Economic Supplement (CPS). Data Sources and Study Setting: The CHIME (Comparing Health Insurance Measurement Error) study used health insurance enrollment records from a large regional Midwest insurer as sample for primary data collection in spring 2015. Study Design: A sample of individuals enrolled in a range of public and private coverage types (including Medicaid and marketplace) was administered the CPS health insurance module, which included questions about month-level coverage, by type, over a 17–18-month time span. Survey data was then matched to enrollment records covering that same time frame, and concordance between the records and self-reports was assessed. Data Collection/Extraction Methods: Sample was drawn by the insurer's informatics specialists and Census Bureau interviewers conducted the survey. Following data collection, updated enrollment records were matched to the survey data to produce a person-level file of coverage by type at the month-level. Principal Findings: For 91% of the overall sample, coverage status and type were reported accurately for at least 75% of observed months. Results varied somewhat by stability of coverage. Among those who were continuously covered throughout the 17–18 month observation period (which comprised 64% of the overall sample), that level of reporting accuracy was observed for 94% of the sample; for those who had censored spells (34% of the overall sample), the figure was 87%; and among those with gaps and/or changes according to the records (2% of the overall sample), for 82% of the group at least 75% of months were reported accurately. Conclusions: Findings suggest that reporting accuracy of month-level coverage in the CPS is high and that the survey could become a valuable new data source for studying the dynamics of coverage, including the Medicaid unwinding.
Original language | English (US) |
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Article number | e14285 |
Journal | Health services research |
Volume | 59 |
Issue number | 2 |
DOIs | |
State | Published - Apr 2024 |
Bibliographical note
Publisher Copyright:© 2024 Health Research and Educational Trust. This article has been contributed to by U.S. Government employees and their work is in the public domain in the USA.
Keywords
- churn
- CPS
- health insurance
- measurement error
- Medicaid unwinding
- validity
PubMed: MeSH publication types
- Journal Article