Table 2.

Major amputations by type at Georgetown Public Hospital Corporation.

Variable	Before intervention	After intervention	Test statistic	P value
Time in months	42	48
N above knee amputations	124	113*
Mean (SD)	2.95 (2.44)	2.13 (1.81)	−1.82 (t)	0.07
Median (IQR)	2 (1–4)	2 (1–3)	1.47 (Z)	0.14
N below knee amputations	166	41*
Mean (SD)	3.95 (2.64)	0.77 (1.05)	−7.35 (t)	<0.0001
Median (IQR)	3 (2–5)	0 (0-1)	6.82 (Z)	<0.0001

^*Represents total with available dates. One AKA and 3 BKAs were not dated.