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Related Concept Videos

Percentile01:18

Percentile

A percentile indicates the relative standing of a data value when data are sorted into numerical order from smallest to largest. It represents the percentages of data values that are less than or equal to the pth percentile. For example, 15% of data values are less than or equal to the 15th percentile. Low percentiles always correspond to lower data values. High percentiles always correspond to higher data values.Percentiles divide ordered data into hundredths. To score in the...
Dalton's Law of Partial Pressure01:11

Dalton's Law of Partial Pressure

The partial pressure of a gas is a measure of the thermodynamic activity of the gas's molecules. The pressure that a gas would create if it occupied the total volume available is called the gas's partial pressure. If two or more gases are mixed together in a container, the molecules move randomly and collide with each other, causing them to reach thermal equilibrium. When the gases have the same temperature, their molecules have the same average kinetic energy. Thus, each gas obeys the ideal...
Pareto Chart00:52

Pareto Chart

A Pareto chart is a bar graph or a combination of both line and bar graphs. The bar lengths represent the individual values or the frequency, while the lines represent the cumulative total values. In this chart, the longest bars are arranged on the left and the shortest bars on the right, which makes it easier to read and interpret the data. It can also be called a Pareto diagram or Pareto analysis.
The Pareto chart is named after the Italian economist Vilfredo Pareto, who described the Pareto...
Vapor Pressure Lowering03:28

Vapor Pressure Lowering

The equilibrium vapor pressure of a liquid is the pressure exerted by its gaseous phase when vaporization and condensation are occurring at equal rates: Dissolving a nonvolatile substance in volatile liquid results in a lowering of the liquid’s vapor pressure. This phenomenon can be explained by considering the effect of added solute molecules on the liquid's vaporization and condensation processes. To vaporize, solvent molecules must be present at the surface of the solution. The presence of...
Difference from Background: Limit of Detection01:05

Difference from Background: Limit of Detection

The limit of detection (LOD) is the smallest amount of analyte that can be distinguished from the background noise. The LOD value corresponds to the concentration at which the analyte signal is three times larger than the standard deviation of the blank signal. Below this value, the analyte signal cannot be differentiated from the background noise. It is calculated by dividing the calibration slope by 3 times the standard deviation of the blank signals.
The LOD indicates the presence or absence...
Emission Spectra02:39

Emission Spectra

When solids, liquids, or condensed gases are heated sufficiently, they radiate some of the excess energy as light. Photons produced in this manner have a range of energies, and thereby produce a continuous spectrum in which an unbroken series of wavelengths is present.

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Related Experiment Video

Updated: Jun 3, 2026

Blue-hazard-free Candlelight OLED
10:18

Blue-hazard-free Candlelight OLED

Published on: March 19, 2017

The Opacity Of Price Transparency.

David V Wehrly1, Maximilian J Pany2, Michael E Chernew3

  • 1David V. Wehrly (wehrly@umich.edu), University of Michigan, Ann Arbor, Michigan.

Health Affairs (Project Hope)
|June 1, 2026
PubMed
Summary
This summary is machine-generated.

Price transparency is hindered by varied healthcare payment methods. Most contracts in 2024 did not use fixed prices based on common coding schemas like MS-DRG or HCPCS, creating significant barriers for comparison.

Related Experiment Videos

Last Updated: Jun 3, 2026

Blue-hazard-free Candlelight OLED
10:18

Blue-hazard-free Candlelight OLED

Published on: March 19, 2017

Area of Science:

  • Health Economics
  • Healthcare Policy
  • Health Services Research

Background:

  • Price transparency initiatives are crucial for informed healthcare decision-making.
  • Standardized payment methodologies are essential for successful price transparency.
  • Variations in coding schemas and pricing approaches complicate healthcare cost comparisons.

Purpose of the Study:

  • To explore the diversity of coding schemas and pricing approaches in five major US markets in 2024.
  • To investigate the frequency of fixed-price contracts using Medicare Severity Diagnosis Related Group (MS-DRG) or Healthcare Common Procedure Coding System (HCPCS) codes.
  • To identify barriers to price transparency stemming from heterogeneous payment methodologies.

Main Methods:

  • Analysis of payment methodologies in inpatient and outpatient contracts across five major US markets in 2024.
  • Examination of the use of MS-DRG or HCPCS codes with fixed prices versus alternative payment methods (e.g., per diem, percentage of charges).
  • Estimation of the prevalence of fixed-price contract usage by service type and payer-provider relationships.

Main Results:

  • Fixed-price MS-DRG or HCPCS methods were used in only 48% of inpatient and 53% of outpatient contracts in 2024.
  • Few carriers utilized fixed-price contracts for all hospitals within a market.
  • Most hospitals were not paid via fixed-price methods by all carriers.

Conclusions:

  • Significant heterogeneity in healthcare payment methodologies presents substantial barriers to price transparency.
  • Consumers, employers, and other stakeholders face difficulties in comparing healthcare prices due to varied pricing approaches.
  • Future price transparency efforts must address and account for the diversity in payment methodologies across hospitals and markets.