1 The median is the middle value of the data set. 2  The lower quartile (Q 1) is the median of the lower half of the data set. 3  The upper quartile (Q 3) is the median of the upper half of the data set. 4  The interquartile range (IQR) is the spread of the middle 50% of the data values.
Removable Essix retainers typically cost between $100-$250 for one or $200-$500 for two. They are made from a vacuum sealed clear plastic that is less noticeable but more likely to break or warp, meaning that you could be paying the price more than once for this style of retainer.
The average monthly charges for each ESRD patient is $64,000 for our clients. It is not unusual for monthly dialysis charges to exceed $75,000. Not surprising in a market where approximately 72% of all patients are treated by just two large provider organizations.