Table 10.

Sensitivity of results to hospital acquired conditions: Y = DRG weight in current year.

	Full Sample	No HAC
Post * expanded DRG	0.0437***	0.0427***
	(0.00242)	(0.00243)
Observations	26904427	26587472

Notes: This table estimates equation 2. This model controls for age, race, and gender, and year, DRG, and hospital fixed effects. Post ∗ ExpandedDRG is an indicator variable equal to 1 if the DRG group expanded in the DRG reform and is in the post expansion period. In column (1) there are results for the full sample of patients. In column (2) there are results for a subsample of patients who did not have a Hospital Acquired Condition (HAC). Standard errors are in parentheses and clustered at the hospital level.

^*p<0.05

^**p<0.01

^***p<0.001.