Based on 2016 MEDPAR Inpatient Data we calculated a variability score using total charges as proxy. Amongst hospitals in the 5 major DRGs shown:
- The Pacific region consistently shows the highest variability.
- The East and West South Central regions consistently have the least variability.
- LOS is a key driver of claim level variability within a DRG.
We reviewed correlation to other variables and found region variances were not related to total volumes, average charges, or length of stay.