TABLE 2.

Patient characteristics at index hospitalizations for liver transplantation, stratified by the presence of subsequent GVHD

	No GVHD (N=88,050)	GVHD (N=383)	P
Age (y)	57 (49–63)	58 (47–65)	0.338
Female (%)	35.4	43.7	0.282
Elixhauser comorbidity index	5 (4–7)	5 (4–7)	0.977
Median household income in patient’s zip code (%)			0.402
$1–$42,999	24.2	29.5
$43,000–$53,999	26.2	29.1
$54,000–$70,999	26.7	21.0
$≥71,000	23.0	20.3
Insurance (%)			0.192
Medicare	31.1	39.4
Medicaid	17.2	18.2
Private	50.5	38.6
Self-pay	1.2	3.9
Types of liver disease (%)
Viral hepatitis	33.0	28.1	0.369
Alcohol-associated liver disease	29.0	19.0	0.023
Autoimmune hepatitis	4.4	4.2	0.918
Acute liver failure	9.1	6.0	0.142
Primary sclerosing cholangitisa	2.3	1.1	0.466
Primary liver cancer	27.2	25.7	0.753
Secondary diagnosis of COVID-19 on index admission (%)b	0.6	9.7	<0.001

^aOnly after September of 2015, because there was no specific code for primary sclerosing cholangitis in the ICD-9 era.

^bCOVID-19 as a secondary diagnosis during hospitalization of liver transplantation in 2020.

Abbreviations: GVHD, graft-versus-host disease; ICD-9, International Classification of Diseases 9th Revision.