Table 2. Adjusted associations of ABOi compatibility with Medicare payments in the pre-, peri- and post-transplant periods ^a.

	30 Days Pre-Transplant	Transplant	One-Year Post-Transplant	Two-Year Post-Transplant	Three-Year Post-Transplant
Clinical Factors	Parameter Estimate, $ per 30 days	Parameter Estimate, $ episode	Parameter Estimate, $ per period	Parameter Estimate, $ per period	Parameter Estimate, $ per period
ABOi	6,584	32,536‡	25,044‡	10,496 ‡	7,379*
A2i	2,189	6,343*	4,266	-2,601	-2,980
ABOc	Reference	Reference	Reference	Reference	Reference

P-values: * P 0.002–0.04;

^†P 0.0001–0.001;

^‡P < 0.0001

^aEstimates adjusted for all other baseline recipient, donor and transplant factors in Table 1. Please see Supplementary Table 1 for complete cost regression results.