Trends and outcomes of liver transplantation among older recipients in the United States

Table 2 Donor characteristics and post-transplant outcomes

	Young, age 18-64 (n = 135758)	Older, age ≥ 65 (n = 20000)	P value
Donor age (IQR)	38 (24-52)	43 (28-56)	< 0.001
Donor female, n (%)	53967 (39.8)	8434 (42.2)	< 0.001
Donor race, %			< 0.001
White	70.3	68.2
Black	14.6	15.5
Hispanic/Latino	11.6	12.4
Asian	2.1	2.4
Others	1.4	1.6
Donor BMI (IQR)	25.6 (22.5-29.5)	26.2 (23.0-30.3)	< 0.001
Donor HCV, n (%)	4912 (3.6)	907 (4.5)	< 0.001
Cold ischemia time, h (IQR)	6.9 (5.0-9.0)	6.1 (4.8-8.0)	< 0.001
Donor risk index (IQR)	1.53 (1.35-1.81)	1.61 (1.38-1.94)	< 0.001
Outcomes
LOS, d (IQR)	11 (7-20)	10 (7-19)	0.261
Graft survival rate, (%)
1 yr	84.0	84.1	0.416
3 yr	77.0	77.1	0.206
5 yr	72.6	72.9	0.010
Overall survival rate
1 yr	88.6	86.5	< 0.001
3 yr	82.5	79.5	< 0.001
5 yr	78.3	75.1	< 0.001

IQR: Interquartile range; BMI: Body mass index; LOS: Post-transplant length of hospital stay; HCV: Hepatitis C virus.