Table 2.

Association of registration characteristics with willingness to consider ECD offers, among all registrants during the study period (columns 2–3), those predicted to benefit from ECD kidneys according to the Merion algorithm (columns 4–5) and registrants aged 65 or over (columns 6–7). Relative rates (RR) and p-values from generalized linear models are shown.

	All registrants		ECD-Benefit		Age ≥ 65
	RR (95% CI)	p-Value	RR (95% CI)	p-Value	RR (95% CI)	p-Value
Age category:
18– 39 years	Reference
40–49 years	1.41 (1.30–1.53)	<0.001	Reference
50–59 years	1.87 (1.62–2.15)	<0.001	1.34 (1.22–1.47)	<0.001
60–69 years	2.37 (1.98–2.83)	<0.001	1.70 (1.47–1.96)	<0.001	Reference
70–99 years	2.67 (2.18–3.27)	<0.001	1.89 (1.58–2.26)	<0.001	1.07 (1.03–1.12)	<0.001
Sex:
Male	1.05 (1.02–1.07)	<0.001	1.06 (1.03–1.09)	<0.001	1.06 (1.03–1.09)	<0.001
Race:
White	Reference		Reference		Reference
Black	1.10 (1.02–1.18)	0.012	1.09 (1.02–1.17)	0.011	1.01 (0.96–1.08)	0.6
Hispanic	1.02 (0.86–1.20)	0.8	1.03 (0.86–1.23)	0.7	0.98 (0.88–1.09)	0.7
Asian	0.88 (0.75–1.05)	0.2	0.85 (0.71–1.03)	0.1	0.85 (0.74–0.97)	0.02
Body Mass Index
>35	1.00 (0.95–1.05)	0.9	0.98 (0.93–1.03)	0.4	0.96 (0.92–1.00)	0.1
Diagnosis:
GN	0.90 (0.83–0.97)	0.009	0.83 (0.74–0.94)	0.003	0.93 (0.88–1.00)	0.042
PKD	0.95 (0.89–1.01)	0.1	0.88 (0.80–0.97)	0.011	0.96 (0.91–1.01)	0.1
DM	1.02 (0.94–1.10)	0.7	0.95 (0.84–1.08)	0.4	0.96 (0.90–1.03)	0.2
HTN	0.98 (0.90–1.06)	0.6	0.93 (0.84–1.04)	0.2	0.97 (0.92–1.01)	0.2
PRA:
0–19%	Reference		Reference		Reference
20–79%	1.06 (0.99–1.12)	0.1	1.05 (0.98–1.12)	0.2	1.05 (1.00–1.10)	0.1
80–100%	1.11 (1.03–1.19)	0.004	1.07 (0.99–1.15)	0.1	1.06 (1.00–1.12)	0.1
Insurance:
Private	Reference		Reference		Reference
Medicare	1.13 (1.05–1.22)	0.001	1.15 (1.06–1.26)	0.001	1.15 (1.01–1.30)	0.032
Medicaid	0.98 (0.88–1.10)	0.8	1.05 (0.94–1.17)	0.4	1.10 (0.99–1.22)	0.1
Center waiting time:
0–749 days	Reference		Reference		Reference
750–1349	0.93 (0.71–1.21)	0.6	0.92 (0.75–1.12)	0.4	0.96 (0.84–1.11)	0.6
1350–1999	0.83 (0.61–1.12)	0.2	0.85 (0.67–1.07)	0.2	0.96 (0.83–1.12)	0.6
2000–9999	0.76 (0.51–1.11)	0.2	0.74 (0.53–1.04)	0.1	0.78 (0.57–1.07)	0.1
Center volume:
0–299	Reference		Reference		Reference
300–499	1.06 (0.84–1.35)	0.6	0.89 (0.71–1.13)	0.3	0.94 (0.82–1.08)	0.4
500–999	1.28 (1.02–1.60)	0.031	1.18 (0.96–1.44)	0.1	1.05 (0.92–1.20)	0.5
Over 1000	1.07 (0.81–1.41)	0.6	0.96 (0.72–1.26)	0.7	0.98 (0.82–1.18)	0.9