Association between Functional Severity and Amputation Type with Rehabilitation Outcomes in Patients with Lower Limb Amputation

Table 2

Coefficient estimates from multiple linear regression models: predictors for length of stay and discharge FIM rating, source UDSMR database.

Variables	Length of stay		Discharge FIM rating
	Coefficient estimate	Confidence interval (95%)	Coefficient estimate	Confidence interval (95%)
Age, yrs	0.03*	0.02 to 0.032	−0.29*	−0.31 to −0.27
Male	0.27*	0.12 to 0.432	−1.27*	−1.69 to −0.85
White	−0.24*	−0.40 to −0.088	2.32*	1.90 to 2.73
Married	−0.78*	−0.93 to −0.63	−0.22	−0.62 to 0.18
Dysvascular	0.11	−0.06 to 0.29	−1.14*	−1.61 to −0.66
Diabetes	0.35*	0.18 to 0.52	−0.014	−0.45 to 0.43
Comorbid, sum	0.26*	0.22 to 0.29	−0.53*	−0.62 to −0.45
CMG 1003 (Ref)
CMG 1002	−3.22*	−3.96 to −2.5	18.17*	16.23 to 20.11
CMG 1001	−4.16*	−5.37 to −2.9	23.02*	19.79 to 26.25
bl TF (Ref)
bl TT	−0.41	−0.91 to 0.10	3.08*	1.74 to 4.42
ul TF	−0.59*	−0.98 to −0.19	3.76*	2.72 to 4.81
ul TT	−0.42*	−0.79 to −0.04	6.17*	5.18 to 7.16
CMG 1002 × bl TT	0.13	−0.88 to 1.1	−1.76	−4.44 to .92
CMG 1002 × ul TF	−0.14	−0.93 to 0.66	−0.45	−2.56 to 1.66
CMG 1002 × ul TT	−0.25	−1.01 to 0.51	−3.15*	−5.16 to −1.13
CMG 1001 × bl TT	−0.89	−2.53 to 0.76	−3.65	−8.01 to 0.70
CMG 1001 × ul TF	−0.95	−2.27 to 0.36	−1.46	−4.94 to 2.03
CMG 1001 × ul TT	−1.92*	−3.18 to −0.65	−2.97	−6.32 to 0.38

ul = unilateral, bl = bilateral, TF = transfemoral, and TT = transtibial.
*Significance at .
× = interaction term.