Table 2—

Effect of BIPA on County Base Payments

			Percentiles
	Mean	SD	25th	50th	75th
Non-floor county ($N=886$)
$\text{Δ}$ base payment ($ per month)	14.39	1.58	13.17	14.03	15.10
Change in base payment (%)	3.0	0.0	3.0	3.0	3.0
Rural floor county ($N=1,831$)
$\text{Δ}$ base payment ($ per month)	52.94	17.16	39.67	62.59	67.18
Change in base payment (%)	14.1	4.9	10.0	16.8	18.3
Urban floor county ($N=426$)
$\text{Δ}$ base payment ($ per month)	64.67	29.56	38.90	62.33	89.05
Change in base payment (%)	16.1	8.4	8.8	14.9	22.7

Notes: Table shows the effect of BIPA on base payments for non-floor counties and counties that were affected by the rural and urban floors. The $\text{Δ}$ base payment rows show the difference between the 2001 base payment and the 2000 base payment in dollars per beneficiary per month. The change in base payment rows show this difference as a percentage of the 2000 base payment. The sample is the full set of counties in 2000 ($N=3,143$) that includes 100 percent of the Medicare population. Base payments in this table are not adjusted for inflation but are normalized for the sample average demographic risk adjustment factor. See text for additional information on data construction.