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Table 7 Baseline demographics and clinical characteristics of trial participants

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

Characteristic Result
Gender (n) 5 male, 7 female
Age* 67.5 (54.5 to 82.0) years
Care setting (n) and patients location 3 acute: general ward (n = 3)
  9 community: patient’s home (n = 8), nursing home (n = 1).
Reference ulcer grade Grade III (n = 7)
  Grade IV (n = 5)
Reference ulcer location:  
Heel (n) 1
Trochanter (n) 1
Sacrum (n) 5
Buttocks/gluteal (n) 3
Ischial (n) 2
Pressure ulcer dimensions:  
Width* 3.0 (2.0 to 3.8) cm
Depth* 4.0 (2.2 to 6.5) cm
Length* 5.0 (4.0 to 7.2) cm
Duration of reference ulcer* 4.0 (2.2 to 28.5) months
Time elapsed since development of first pressure ulcer* 24.0 (3.0 to 144.0) months
Number of patients with an infected reference ulcer (n) 0
Number of patients with osteomyelitis (n) 0
Number of patients who had a previous pressure ulcer at the same location as the current reference ulcer (n) 3
Number of co-morbidities (n)* 2.5 (2.0 to 5.0)
Number of patients with grade I/II pressure ulcer(s) in addition to the reference pressure ulcer (n patients) 0 grade I/II (n = 2 patients)
  1 grade I/II (n = 5 patients)
  3 grade I/II (n = 1 patient)
  Not recorded (n = 4 patients)
Number of grade III/IV pressure ulcer(s) in patients (n patients) 1 grade III/IV pressure ulcer (n = 8 patients)
  2 grade III/IV pressure ulcers (n = 2 patients)
  3 grade III/IV pressure ulcers (n = 1 patient)
  4 grade III/IV pressure ulcers (n = 1 patient)
Treatment preference Prefer NPWT (n = 3)
  Prefer SC (n = 1)
  No preference (n = 8)
Number of patients able to complete the visual analogue pain scale (n) 9
Visual analogue pain scale score* 0.6 (0.2 to 3.9) cm
  1. *Data are presented as median and 25th to 75th centiles.