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Table 3 Cross-tabulation of assessment by the independent clinical assessor and blinded expert central photography review

From: Pressure Relieving Support Surfaces: a Randomised Evaluation 2 (PRESSURE 2): using photography for blinded central endpoint review

 

Blinded expert central photography review

Kappak

PABAKk

Healthy, altered or Cat. 1 PU

Cat. 2, 3, 4 or U

Unable to determine

Overall

Overall

Independent clinical assessor

Healthy, altered or category 1 PU

254 (89.4%)

7 (2.5%)

3 (1.1%)

264 (93.0%)

0.53

0.93

Category 2, 3, 4 or U

2 (0.7%)

6 (2.1%)

2 (0.7%)

10 (3.5%)

N/A

4 (1.4%)

2 (0.7%)

1 (0.4%)

7 (2.5%)l

Missing

3 (1.1%)

0 (0.0%)

0 (0.0%)

0 (0.0%)

Overall

263 (92.6%)

15 (5.3%)

6 (2.1%)

284 (100.0%)

APM

Independent clinical assessor

Healthy, altered or category 1 PU

110 (87.3%)

3 (2.4%)

1 (0.8%)

114 (90.5%)

0.59

0.92

Category 2, 3, 4 or U

2 (1.6%)

4 (3.2%)

2 (1.6%)

8 (6.4%)

N/A

1 (0.8%)

1 (0.8%)

0 (0.0%)

2 (1.6%)

Missing

2 (1.6%)

0 (0.0%)

0 (0.0%)

2 (1.6%)

Overall

115 (91.3%)

8 (6.4%)

3 (2.4%)

126 (100.0%)

HSFM

Independent clinical assessor

Healthy, altered or category 1 PU

144 (91.1%)

4 (2.5%)

2 (1.3%)

150 (94.9%)

0.49

0.95

Category 2, 3, 4 or U

0 (0.0%)

2 (1.3%)

0 (0.0%)

2 (1.3%)

N/A

3 (1.9%)

1 (0.6%)

1 (0.6%)

5 (3.2%)

Missing

1 (0.6%)

0 (0.0%)

0 (0.0%)

1 (0.6%)

Overall

148 (93.1%)

7 (4.4%)

3 (1.9%)

158 (100.0%)

  1. U unstageable
  2. kKappa and PABAK calculated using only assessments where both the independent assessor and central review assessments were available
  3. lIAD/moisture lesion (N = 5), dermatological skin condition (N = 1) and surgical wound/bruising (N = 1)