Association between Functional Severity and Amputation Type with Rehabilitation Outcomes in Patients with Lower Limb Amputation
Table 1
Demographic characteristics and rehabilitation outcomes by amputation levels.
Total
ul TT
ul TF
bl TT
bl TF
26,501
15,798
7,495
1,610
1,598
Demographics
Age*
64.5 ± 13.4
63.8 ± 13.2
66.3 ± 13.6
62.6 ± 13.5
64.2 ± 13.1
Men (%)*
64.0
65.7
59.9
68.5
62.5
Race/ethnicity*%
Non-Hispanic white
63.5
63
66.7
57.5
58.3
Black
21.0
20.4
20.2
25.8
26
Hispanic
7.6
8.5
6.2
7.1
6.7
Other
7.9
8.1
6.9
9.6
8.9
Married (%)*
50.4
50.7
50.1
52.9
47.6
Etiology-dysvascular (%)*
76.5
79.8
68.7
80.4
76.8
Diabetes (%)*
66.0
72.8
50.3
76.6
62.1
Comorbidities (sum)*
2.2 ± 1.4
2.3 ± 1.4
1.9 ± 1.3
2.7 ± 1.5
2.3 ± 1.5
Case mix group*(%)
CMG1001
8.3
8.5
8.4
8.1
6.7
CMG1002
29.3
31.6
27.1
24.8
21.7
CMG1003
62.3
59.9
64.5
67.1
71.6
Admission functional rating
FIM motor admission*
38.8 ± 11.4
39.6 ± 11.1
37.9 ± 11.8
37.6 ± 11.6
35.5 ± 11.8
FIM cog admission*
27.3 ± 6.4
27.5 ± 6.2
26.9 ± 6.6
26.9 ± 6.3
26.7 ± 6.7
FIM total admission*
67.9 ± 16.4
69 ± 15.9
66.7 ± 17
66.2 ± 16.5
63.8 ± 17
Rehabilitation outcomes
FIM motor discharge*
55 ± 14.1
56.1 ± 13.5
54.2 ± 14.7
53.2 ± 14.1
50.4 ± 15.2
FIM cog discharge*
29.5 ± 5.7
29.9 ± 5.5
29.2 ± 6
29.3 ± 5.8
28.6 ± 6.4
FIM total discharge*
88 ± 19.4
89.5 ± 18.6
86.8 ± 20.2
85.7 ± 19.4
82 ± 21.2
Length of stay (days)*
13.3 ± 6.5
13.2 ± 6.4
13.2 ± 6.5
13.6 ± 6.9
14.2 ± 6.8
Discharged home (%)
72.4
72.6
72.4
71.8
70.7
ul = unilateral, bl = bilateral, TF = transfemoral, and TT = transtibial.
*A significant relationship between amputation category and denoted variable at . Case mix groups (CMGs) are calculated from weighted admission FIM motor ratings: CMG 1001 (FIM motor greater than 47.65), CMG 1002 (FIM motor greater than 36.25 and less than 47.65), and CMG 1003 (FIM motor less than 36.25).
