eAppendix Table.

Cox proportional hazards regression model output for the national model

	Hazard Ratio (LCL, UCL)	Hazard Ratio Pr > ChiSq
Relationship of caregiver to Veteran
Spouse	-ref-
Other	2.35 (2.21, 2.49)	<.0001
Parent	1.11 (1.03, 1.19)	0.0054
Significant other	1.67 (1.56, 1.78)	<.0001
Tier level of Veteran (from CAT)
Tier 1	1.22 (1.17, 1.28)	<.0001
Tier 2	0.99 (0.94, 1.03)	0.5769
Tier 3	-ref-
FY of application date
2011	-ref-
2012	1.39 (1.29, 1.50)	<.0001
2013	1.60 (1.49, 1.73)	<.0001
2014	1.80 (1.66, 1.95)	<.0001
2015	1.85 (1.70, 2.02)	<.0001
2016	1.68 (1.50, 1.88)	<.0001
Gender of caregiver
Female	-ref-
Male	1.14 (1.06, 1.23)	0.0002
Gender of Veteran
Male	-ref-
Female	0.96 (0.90, 1.04)	0.3083
Race of Veteran
White	-ref-
Black/African-American	1.09 (1.03, 1.14)	0.0010
Other or Unknown	0.98 (0.92, 1.04)	0.4938
Marital status of Veteran at application date
Married	-ref-
Previously married or Never married or Unknown/missing	1.02 (0.98, 1.07)	0.3666
Ethnicity of Veteran
Not Hispanic/Latino	-ref-
Hispanic/Latino	0.84 (0.79, 0.89)	<.0001
VISN of closest VAMC to Veteran’s residence
1	0.75 (0.67, 0.85)	<.0001
2	0.76 (0.68, 0.83)	<.0001
4	0.92 (0.81, 1.03)	0.1528
5	1.10 (0.99, 1.23)	0.0682
6	1.48 (1.38, 1.59)	<.0001
7	1.47 (1.34, 1.60)	<.0001
8	0.81 (0.75, 0.88)	<.0001
9	0.79 (0.72, 0.87)	<.0001
10	0.90 (0.81, 0.99)	0.0346
12	0.95 (0.85, 1.06)	0.3758
15	1.12 (1.01, 1.25)	0.0371
16	1.16 (1.03, 1.31)	0.0121
17	1.55 (1.43, 1.69)	<.0001
19	1.37 (1.24, 1.51)	<.0001
20	1.43 (1.32, 1.56)	<.0001
21	0.86 (0.79, 0.94)	0.0006
23	0.81 (0.70, 0.93)	0.0028
Number of physical health-related comorbidities at baseline	0.97 (0.96, 0.98)	<.0001
Number of mental health-related comorbidities at baseline	1.07 (1.06, 1.08)	<.0001
Veteran age at application date	0.98 (0.98, 0.99)	<.0001