Is the median or the minimum the better reference?

Published Draft: kept out of search until the figures are confirmed

The median is usually the better reference for a typical non-covered price, because half of disclosed prices are below it and half above.

The minimum and maximum show the extremes, which can reflect unusual cases.

On this page

What does the median tell you?

The middle price, which is not pulled up or down by a few extreme prices.

What do the quartiles add?

The middle half of prices lies between the first and third quartiles.

Why not rely on the minimum?

A minimum can reflect a different package or a rare case.

Why does the number of institutions matter?

Distributions from few institutions are less stable; groups under five are hidden.

How should I use the distribution with a quote?

Check where the quote sits and ask what is included if it is far from the median.

Where do these numbers come from?

  1. Non-covered medical fee disclosure (by item and institution) · Health Insurance Review & Assessment Service (HIRA) · Annual · Primary source Institution names are discarded after aggregation
  2. Consumer price index · Statistics Korea (KOSIS) · Monthly · Primary source

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