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Table 1—

Characteristics of the study population stratified into diabetic and nondiabetic patients according to initial unilateral amputation, contralateral amputation, and reamputation

Diabetic
Nondiabetic
Initial unilateral amputationContralateral amputationReamputation*Initial unilateral amputationContralateral amputationReamputation*
n 133 22 25 157 21 33 
Women 62 (47) 9 (41) 10 (40) 79 (50) 11 (52) 14 (42) 
    Age (years) 77 ± 9   83 ± 8   
Men 71 (53) 13 (59) 15 (60) 78 (50) 10 (48) 19 (58) 
    Age (years) 76 ± 11   79 ± 8   
Level       
    Transfemoral 7 (5) 1 (5) 11 (44) 25 (16) 5 (24) 26 (79) 
    Knee disarticulation 6 (5) 2 (9)  16 (10) 1 (5) 3 (9) 
    Transtibial 108 (81)§ 17 (77) 13 (52) 109 (69)§ 15 (71)§ 4 (12) 
    Midfoot (including tarsometatarsal joints) 5 (4) 1 (5) 1 (4) 2 (1)   
    Transmetatarsal 7 (5) 1 (5)  5 (3)   
Diabetic
Nondiabetic
Initial unilateral amputationContralateral amputationReamputation*Initial unilateral amputationContralateral amputationReamputation*
n 133 22 25 157 21 33 
Women 62 (47) 9 (41) 10 (40) 79 (50) 11 (52) 14 (42) 
    Age (years) 77 ± 9   83 ± 8   
Men 71 (53) 13 (59) 15 (60) 78 (50) 10 (48) 19 (58) 
    Age (years) 76 ± 11   79 ± 8   
Level       
    Transfemoral 7 (5) 1 (5) 11 (44) 25 (16) 5 (24) 26 (79) 
    Knee disarticulation 6 (5) 2 (9)  16 (10) 1 (5) 3 (9) 
    Transtibial 108 (81)§ 17 (77) 13 (52) 109 (69)§ 15 (71)§ 4 (12) 
    Midfoot (including tarsometatarsal joints) 5 (4) 1 (5) 1 (4) 2 (1)   
    Transmetatarsal 7 (5) 1 (5)  5 (3)   

Data are means ± SD or n (%).

*

Reamputation (including bone revision).

P < 0.001 compared with diabetic patients.

P = 0.007 compared with diabetic patients.

§

Including one ankle disarticulation.

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