Table 3. Associations of ABOi compatibility including splenectomy 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
Blood type compatibility	Parameter Estimate, $ per 30 days	Parameter Estimate, $ episode	Parameter Estimate, $ per period	Parameter Estimate, $ per period	Parameter Estimate, $ per period
ABOi with splenectomy	12,633‡	47,465‡	33,923‡	15,009*	6,533
ABOi without splenectomy	5,445‡	29,563‡	23,296‡	9,527†	7,567*
A2i	2,189	6,339*	4,264	-2,601	-2,979
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.