Table 2.

Predictors of LTAC Transfer versus Staying in the Hospital

	Unadjusted OR (95% CI)	Adjusted OR (95% CI)
Patient Factors Prior to Hospitalization
Age, years
65–69	REF	REF
70–74	1.11 (0.91,1.35)	1.11 (0.89,1.39)
75–79	0.99 (0.81,1.21)	1.08 (0.87,1.35)
80–84	1.25 (1.03,1.53)	1.37 (1.10,1.70)
≥ 85	0.83 (0.69,1.01)	0.94 (0.76,1.16)
Prior LTAC use	3.34 (2.62,4.26)	1.77 (1.36,2.31)
Prior SNF use	2.17 (1.92,2.46)	1.73 (1.50,1.99)
Wheelchair	1.49 (1.28,1.73)	1.30 (1.10,1.53)
Patient Factors of Index Hospitalization
Primary diagnosis
DRG resource intensity weight, per unit	1.82 (1.73,1.91)	1.16 (1.04,1.29)
DRG with a MCC designation	3.52 (3.08,4.02)	2.16 (1.82,2.57)
Medical diagnosis type (vs surgical)	0.16 (0.14, 0.19)	0.41 (0.29,0.58)
Respiratory MDC	0.50 (0.44,0.58)	0.71 (0.60,0.85)
Circulatory MDC	0.77 (0.66,0.90)	0.65 (0.54,0.78)
Urinary MDC	0.61 (0.50,0.75)	0.71 (0.56,0.90)
Secondary diagnoses
Respiratory failure	1.67 (1.47,1.90)	1.37 (1.17,1.60)
Skin, soft tissue, or joint infection	3.18 (2.68,3.78)	2.02 (1.65,2.46)
Chronic skin ulcer	3.18 (2.75,3.68)	1.73 (1.46,2.04)
Delirium or dementia	1.36 (1.19,1.56)	1.19 (1.01,1.39)
Select intensive treatments and procedures
Transient mechanical ventilation (vs none)	2.06 (1.61,2.62)	0.66 (0.50,0.88)
Central venous line	2.61 (2.27,3.01)	1.57 (1.34,1.83)
Excisional debridement	10.4 (6.95,15.5)	2.05 (1.31,3.22)
Hospital Factors
For-profit ownership	1.39 (1.14,1.71)	1.58 (1.27,1.95)
Urban	1.77 (1.37, 2.27)	0.54 (0.39,0.73)
Region Factors
Linear arc distance to nearest LTAC, miles
>33.6	REF	REF
>11.4 – 33.6	2.04 (1.47,2.82)	2.24 (1.56,3.21)
>5.1– 11.4	4.41 (3.18,6.10)	4.83 (3.27,7.14)
>1.4 – 5.1	5.69 (4.13,7.84)	6.14 (4.18,9.04)
0–1.4	6.49 (4.71,8.93)	6.18 (4.21,9.09)
State without Certificate of Need law	2.63 (1.98,3.49)	2.31 (1.81,2.94)
LTAC supply, per 5 beds/100K persons	1.47 (1.37,1.58)	1.23 (1.16,1.32)
Median household income, per $10,000	0.81 (0.71,0.93)	0.88 (0.79,0.97)
Medicare spending per person, per $3000	4.97 (3.37,7.33)	1.48 (1.06,2.06)