Table 1.

Data collected from clinical records

Patient factors	Patient demographics
	Mechanism and site of Injury
	New Injury Severity Score (NISS)
Descriptors of management	Number of debridements
	Duration of critical care
	Duration of secondary care
Variables	Delay between injury and TNP first use
	Frequency of TNP dressing changes
	Duration of TNP use
	Debridements during TNP
Outcome Measure	Infections requiring new prescription of antibiotics