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PLoS One. 2016 Jul 8;11(7):e0157912. doi: 10.1371/journal.pone.0157912. eCollection 2016.

Assessing the Complex and Evolving Relationship between Charges and Payments in US Hospitals: 1996 - 2012.

Author information

  • 1Institute for Health Metrics and Evaluation, University of Washington, Seattle, Washington, United States of America.
  • 2Global Health Group, University of California San Francisco, San Francisco, United States of America.
  • 3Northwell Health, Great Neck, New York, United States of America.
  • 4David Geffen School of Medicine, University of California Los Angeles, Los Angeles, United States of America.

Abstract

BACKGROUND:

In 2013 the United States spent $2.9 trillion on health care, more than in any previous year. Much of the debate around slowing health care spending growth focuses on the complicated pricing system for services. Our investigation contributes to knowledge of health care spending by assessing the relationship between charges and payments in the inpatient hospital setting. In the US, charges and payments differ because of a complex set of incentives that connect health care providers and funders. Our methodology can also be applied to adjust charge data to reflect actual spending.

METHODS:

We extracted cause of health care encounter (cause), primary payer (payer), charge, and payment information for 50,172 inpatient hospital stays from 1996 through 2012. We used linear regression to assess the relationship between charges and payments, stratified by payer, year, and cause. We applied our estimates to a large, nationally representative hospital charge sample to estimate payments.

RESULTS:

The average amount paid per $1 charged varies significantly across three dimensions: payer, year, and cause. Among the 10 largest causes of health care spending, average payments range from 23 to 55 cents per dollar charged. Over time, the amount paid per dollar charged is decreasing for those with private or public insurance, signifying that inpatient charges are increasing faster than the amount insurers pay. Conversely, the amount paid by out-of-pocket payers per dollar charged is increasing over time for several causes. Applying our estimates to a nationally representative hospital charge sample generates payment estimates which align with the official US estimates of inpatient spending.

CONCLUSIONS:

The amount paid per $1 charged fluctuates significantly depending on the cause of a health care encounter and the primary payer. In addition, the amount paid per charge is changing over time. Transparent accounting of hospital spending requires a detailed assessment of the substantial and growing gap between charges and payments. Understanding what is driving this divergence and generating accurate spending estimates can inform efforts to contain health care spending.

PMID:
27390858
PMCID:
PMC4938432
DOI:
10.1371/journal.pone.0157912
[PubMed - in process]
Free PMC Article
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