2011 Hospital Data

Sam Caldwell

Total Hospitals per State

With experience comes expertise. Procedures are performed at hospitals across the country all the time, but have you ever stopped to consider what state, or even what hospital, performs the most of a given procedure in a year? Are there differences in the number of hospitals per state?

This data shows the total number of hospitals in each state. The color represents cost, with white being the least expensive and dark blue being the most.

It is immediately obvious that a hospital visit in Maryland is significantly less expensive than those in other states. Let's keep that in the back of our minds while we look for any other unusual trends.

Let's first see how the distribution of hospitals compares to state populations.

Compared to State Population

The population data corresponds surprisingly well with the number of hospitals per state.

No outliers here.

Most Common Procedure

Now Let's see what happens when we compare what the most common procedure is for each state.

This shows that the total number of the most common procedures performed for each state also correspond pretty well with the population data. Perhaps we should examine if there are any hospitals that perform unusual amounts of a procedure.

Most Common Procedure

Here we looked at the most commonly performed procedure at each hospital within a state, and then selected the hospital that performed more of their top procedure than the other hospitals, respectively.

One hospital in New York performs by far the most major joint replacements (DRG 470). Is this part of a state-wide trend? Is New York as a whole more prone to joint replacements, or is there one hospital responsible?

Hospitals within New York

We can see that within New York, most hospitals perform less than 1,000 procedures per DRG Definition. The exception to this is the Hospital for Special Surgery which performed 3,383 joint replacements.

Feel free to explore trends within other states as well.

Most Affordable Hospital

These charts are now colored by total hospitals per state. There does not seem to be a relationship between cost and number of hospitals.

Now let's return to Maryland, which has the lowest average hospital procedure cost ($13k) compared to the other states. The next cheapest state is West Virginia, which is about 1.5 times as expensive at almost $20k. What could account for this anomaly?

Maryland is the only state which uses an all-payer rate setting model. Under this model, all third parties pay the same price for services at a given hospital. This system has been in place since the 1970s, and has resulted in lower patient costs across the board.

You can find out more here.