Table 3.

Unadjusted associations between key disparities and preemptive deceased donor transplantation, stratified by post-KAS year

Characteristic	2015	2016	2017	2018a	P Valueb
	Preemptive (%)	Preemptive (%)	Preemptive (%)	Preemptive (%)
	n=838 (8.70%)	n=1020 (9.49%)	n=1156 (10.17%)	n=589 (12.19%)
	OR (95% CI)	OR (95% CI)	OR (95% CI)	OR (95% CI)
Race/ethnicity
White	Reference group	Reference group	Reference group	Reference group
Black	0.21 (0.18, 0.26)	0.25 (0.21, 0.29)	0.26 (0.22, 0.30)	0.25 (0.19, 0.31)	0.37
Hispanic	0.29 (0.23, 0.36)	0.24 (0.19, 0.29)	0.27 (0.22, 0.33)	0.27 (0.20, 0.35)	0.84
Other	0.36 (0.28, 0.48)	0.32 (0.24, 0.41)	0.41 (0.33, 0.51)	0.46 (0.34, 0.62)	0.13
Primary payer
Private	Reference group	Reference group	Reference group	Reference group
Medicare	0.15 (0.13, 0.17)	0.18 (0.16, 0.21)	0.18 (0.16, 0.20)	0.18 (0.14, 0.22)	0.20
Medicaid	0.33 (0.25, 0.43)	0.38 (0.30, 0.49)	0.38 (0.30, 0.49)	0.42 (0.29, 0.62)	0.38
Other/unknown	0.39 (0.25, 0.62)	0.52 (0.35, 0.76)	0.55 (0.38, 0.78)	0.62 (0.50, 0.77)	0.12

Preemptive (%) refers to the count of preemptive transplants that occurred during that year, and what percentage of all transplants that year were preemptive. KAS, Kidney Allocation System; OR, odds ratio; 95% CI, 95% confidence interval.

^a2018 data only available through May 2018.

^bP value is for interaction term between categorical characteristic and continuous post-KAS transplant date.