TABLE 7.

High vs low bacteria count at first dressing change in subjects with high bacterial count at start of study

	Treatment group
	NPWTi‐d	NPWT	P‐Value of Wilcoxon or Fisher's exact tests
Subjects with high bacteria (HB) count (≥105 CFU/mL) at start of study prior to initial operating room (OR) debridement (n)	23	24
Subjects with high bacteria count (≥105 CFU/mL) at start of study after initial OR debridement (n)	9	13
Mean change in bacterial count between initial OR post‐debridement and first dressing change	−1.5*106	3.1*105	.09
Subjects who had HB count after initial debridement and had HB count at first dressing change	0/7	8/12	.25

Abbreviations: NPWT, negative‐pressure wound therapy; NPWTi‐d, NPWT with cyclical instillation and a period of dwell.