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Table 3 Data collection process for recruitment data collected during the trial

From: A pilot randomised controlled trial of negative pressure wound therapy to treat grade III/IV pressure ulcers [ISRCTN69032034]

Data process How and when collected
Number of participants with grade III or IV pressure ulcers who can be recruited to a trial of NPWT compared with standard care from acute and primary care in one city (population 715,000) over a 12-month recruitment period During pre-trial screening on pre-trial screening forms