Table I.

Sample characteristics at baseline (n =31)

Factor	Median (IQR)	n(%)
Gender
Female		13(41.9)
Male		18(58.1)
Age(range 32–74)	61(50–64)
<60 years		14(45.2)
>60 years		17(54.8)
Race
White or Hispanic		28 (90.3)
Non-White/Non-Hispanic		3 (9.7)
Education, (range 8–21 years)	16 (13–17)
<16 years		13 (41.9)
>16 years (college)		18 (58.1)
Time since amputation, (range 0.2–59 years)	6 (2–16)
<5 years		15 (48.4)
>5 years		16 (51.6)
Mean phantom pain intensity (range 4–10)	6 (5–8)
Moderate (4–5)		12 (38.7)
Severe (6–10)		19 (61.3)
Employment status
Retired or working (full- or part-time)		21 (67.7)
Not working due to disability		10 (32.3)
Veteran status
Veteran		6 (19.4)
Non-veteran		25 (80.6)
Aetiology of amputation
Trauma		14 (45.2)
Non-trauma		17 (54.8)
Amputation location
Lower extremity		20 (64.5)
Upper extremity		11 (35.5)
Amputation side
Right		15 (48.4)
Left		16 (51.6)
Prosthetic user
No		11 (35.5)
Yes		20 (64.5)
Depressive symptoms (CES-D) (range 0–43)	9 (4–16)
<16		20 (64.5)
>16		7 (22.6)
Unknown		4 (12.9)
Residual limb (stump) pain
No		12 (38.7)
Yes		17 (54.8)
Unknown		2 (6.5)

IQR: interquartile range; CES-D: Centers for Epidemiologic Studies Depression subscale.