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Table 2 Agreement between detected skin enhancements and physician’s diagnosis

From: Detection of subclinical skin manifestation in patients with psoriasis and psoriatic arthritis by fluorescence optical imaging

  Pso/PsA RA Healthy  
n = 80 n = 78 n = 25  
N % N % N % p value
FOI positive 58 72.5 16 20.5 7 28.0 < 0.001
FOI Diagnosis
 Pso / PsA 58 72.5 16 20.5 7 28.0  
 RA 16 20.0 60 76.9 1 4.0  
 Healthy 6 7.5 2 2.6 17 68.0  
If FOI positive: FOIAS grades        0.255
 1 13 22.4 4 25.0 0 0.0  
 2 42 72.4 9 56.3 6 85.7  
 3 3 5.2 3 18.8 1 14.3  
If FOI positive (n = 81): localization
 Region 1 26 32.5 12 15.4 4 16.0 0.026
 Region 2 28 35.0 5 6.4 6 24.0 < 0.001
 Region 3 8 10.0 7 9.0 4 16.0 0.598
 Region 4 23 28.8 12 15.4 5 20.0 0.123
 Region 5 39 48.8 10 12.8 4 16.0 < 0.001