Table 3. Average percent white (-250mmHg).

NPWT: negative pressure wound therapy

	Left  Foot Average (with NPWT)	Left Foot Standard Deviation	Right Foot Average (no NPWT)	Right Foot Standard Deviation	Data set	P-value
1-9 vac off (A)	51.606	0.234	42.551	1.063	Left Foot
10-19 vac on (B)	51.025	0.426	39.052	0.829	A to B	0.025
20-29 vac off (C)	49.444	0.695	38.211	1.149	B to C	<0.001
30-40 vac on (D)	49.741	0.422	33.801	1.668	C to D	0.367
					Right Foot
					A to B	<0.001
					B to C	0.001
					C to D	<0.001