Journal
HEALTH SERVICES RESEARCH
Volume 50, Issue 6, Pages 2037-2047Publisher
WILEY
DOI: 10.1111/1475-6773.12304
Keywords
Health care finance; medical price indices; quantitative methods; MarketScan Research Data
Funding
- Robert Wood Johnson Foundation/Health Care Financing Organization [71408]
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Objective. To compare methods of price measurement in health care markets. Data Sources. Truven Health Analytics MarketScan commercial claims. Study Design. We constructed medical prices indices using three approaches: (1) a sentinel service approach based on a single common service in a specific clinical domain, (2) a market basket approach, and (3) a spending decomposition approach. We constructed indices at the Metropolitan Statistical Area level and estimated correlations between and within them. Principal Findings. Price indices using a spending decomposition approach were strongly and positively correlated with indices constructed from broad market baskets of common services (r > 0.95). Prices of single common services exhibited weak to moderate correlations with each other and other measures. Conclusions. Market-level price measures that reflect broad sets of services are likely to rank markets similarly. Price indices relying on individual sentinel services may be more appropriate for examining specialty-or service-specific drivers of prices.
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