|  | Survey | N = 37 | Interviews | N = 15 |
---|---|---|---|---|---|
 |  | (n) | (%) | (n) | (%) |
Gender | Female | 18 | 49 | 6 | 40 |
 | Male | 18 | 49 | 9 | 60 |
 | Prefer not to answer | 1 | 3 | 0 | 0 |
Cause | Congenital | 23 | 62 | 12 | 80 |
 | Acquired | 14 | 38 | 3 | 20 |
Level | A | 2 | 5 | 2 | 13 |
 | B | 26 | 70 | 10 | 67 |
 | C | 9 | 24 | 3 | 20 |
Prosthesis use | I use my prosthesis daily | 15 | 41 | 3 | 20 |
 | I use my prosthesis at least once a week | 6 | 16 | 4 | 27 |
 | I use my prosthesis less than once a week | 0 | 0 | 0 | 0 |
 | I used a prosthesis in the past but not anymore | 6 | 16 | 4 | 27 |
 | I never used a prosthesis | 10 | 27 | 4 | 27 |
Duration of use | less than 1 year | 3 | 14 | 1 | 14 |
 | 1 to 5 years | 5 | 24 | 2 | 29 |
 | 6 to 10 years | 3 | 14 | 1 | 14 |
 | more than 10 years | 10 | 48 | 2 | 29 |