Table 2.

Multivariate Logistic Regression (unadjusted and adjusted) for Association of Younger Age with Discharge to Subacute (vs. home [ref]) for Patients with TBI (N=221961)

Variables	Values	Unadjusted				Adjusted
		OR	95% CI		p	OR	95% CI		p
Sociodemographic characteristics
Age (reference = 65+ years)	18-64 years	0.48	0.46	0.49	<.0001	0.72	0.69	0.76	<.0001
Sex (Ref = Male)	Female	1.10	1.08	1.13	<.0001	0.89	0.87	0.92	<.0001
Race/Ethnicity (Ref = White)	Black	0.90	0.86	0.94	<.0001	0.78	0.74	0.82	<.0001
	Hispanic/Latino	0.64	0.61	0.68	<.0001	0.59	0.56	0.63	<.0001
	Other	0.76	0.73	0.80	<.0001	0.83	0.78	0.88	<.0001
Marital status (Ref = Married)	Never Married	1.02	0.99	1.05	0.2418	1.85	1.78	1.93	<.0001
	Widowed	1.87	1.82	1.92	<.0001	1.80	1.74	1.87	<.0001
	Separated	1.38	1.26	1.52	<.0001	2.60	2.32	2.90	<.0001
	Divorced	1.52	1.46	1.59	<.0001	2.52	2.40	2.64	<.0001
Insurance status (Ref = Private)	None	0.90	0.83	0.98	0.0101	0.91	0.83	1.00	0.0389
	Medicare	2.34	2.28	2.41	<.0001	1.57	1.50	1.65	<.0001
	Medicaid	1.45	1.38	1.53	<.0001	1.24	1.17	1.32	<.0001
	Other	1.03	0.93	1.15	0.5951	1.06	0.94	1.20	0.3446
Clinical characteristics
CMG Comorbidity Tier (Ref = Tier 0/None)	Tier 1	1.61	1.54	1.68	<.0001	0.84	0.79	0.89	<.0001
	Tier 2	1.86	1.80	1.91	<.0001	1.06	1.02	1.10	0.0018
	Tier 3	1.23	1.20	1.27	<.0001	1.04	1.01	1.08	0.0264
Admission Motor Function	Admission FIM Motor Score	0.95	0.94	0.95	<.0001
Admission Cognitive Function	Admission FIM Cognitive Score	0.93	0.93	0.93	<.0001	0.99	0.99	0.99	<.0001
Discharge Motor Function	Discharge FIM Motor Score	0.93	0.93	0.93	<.0001	0.94	0.94	0.934	<.0001
Discharge Cognitive Function	Discharge FIM Cognitive Score	0.89	0.89	0.89	<.0001	0.96	0.96	0.96	<.0001
Days Onset to Admission	Number of days	1.01	1.01	1.01	<.0001	1.00	1.00	1.00	<.0001
Length of Stay	Number of days	1.03	1.03	1.03	<.0001	1.01	1.01	1.02	<.0001
Year of admission (Ref = 2018)	2002	1.05	0.98	1.12	0.2123	1.11	1.02	1.21	0.0135
	2003	1.03	0.96	1.10	0.4908	1.00	0.92	1.09	0.9970
	2004	1.02	0.95	1.10	0.5325	1.01	0.93	1.10	0.7599
	2005	1.04	0.98	1.11	0.2158	0.99	0.92	1.07	0.8463
	2006	1.18	1.11	1.26	<.0001	1.10	1.02	1.19	0.0114
	2007	1.18	1.11	1.26	<.0001	1.09	1.01	1.18	0.0215
	2008	1.20	1.12	1.28	<.0001	1.08	1.00	1.16	0.0413
	2009	1.24	1.16	1.32	<.0001	1.10	1.03	1.19	0.0079
	2010	1.23	1.16	1.31	<.0001	1.11	1.03	1.20	0.0047
	2011	1.13	1.06	1.21	0.0001	1.03	0.96	1.11	0.3838
	2012	1.14	1.07	1.22	<.0001	1.06	0.99	1.15	0.0959
	2013	1.10	1.03	1.17	0.0049	1.04	0.97	1.12	0.2748
	2014	1.07	1.00	1.15	0.0547	1.07	0.98	1.15	0.1265
	2015	1.07	1.00	1.14	0.0424	1.02	0.95	1.10	0.6301
	2016	1.06	1.00	1.13	0.0616	1.05	0.98	1.13	0.1878
	2017	1.00	0.94	1.07	0.9134	0.99	0.92	1.07	0.8466
Facility Characteristics
IRF location (Ref = Region P02: NJ, NY, PR)	Region P01: CT, MA, ME, NH, RI, VT	1.01	0.95	1.06	0.8647	1.08	1.01	1.16	0.0321
	Region P03: DE, MD, PA, VA, WV	0.67	0.64	0.70	<.0001	0.62	0.59	0.66	<.0001
	Region P04: AL, FL, GA, KT, MS, NC, TN, SC	0.52	0.50	0.55	<.0001	0.37	0.35	0.39	<.0001
	Region P05: IL, IN, MI, MN, OH, WI	0.72	0.69	0.75	<.0001	0.76	0.72	0.80	<.0001
	Region P06: AR, LA, NM, OK, TX	0.69	0.66	0.73	<.0001	0.64	0.61	0.68	<.0001
	Region P07: IA, KS, MO, NE	0.74	0.70	0.79	<.0001	0.85	0.79	0.90	<.0001
	Region P08: CO, MT, ND, SD, UT, WY	0.52	0.49	0.55	<.0001	0.70	0.65	0.75	<.0001
	Region P09: AZ, CA, HI, NV	0.41	0.39	0.43	<.0001	0.33	0.31	0.35	<.0001
	Region P10: AK, ID, OR, WA	0.32	0.29	0.35	<.0001	0.40	0.36	0.44	<.0001
IRF type (Ref = Rehab Unit in Hospital)	Freestanding	0.97	0.94	0.99	0.0034	0.81	0.79	0.84	<.0001
IRF accreditation (Ref = No accreditation)	Accreditation (Joint Commission and/or CARF)	1.05	1.02	1.07	<.0001	1.13	1.10	1.17	<.0001

Note: Ref = Reference; FIM = Functional Independence Measure; CMG = case mix group