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Table 3 Median specific IgE levels in allergic vs. non-allergic patients (n = 32*)

From: Specific IgE to fish extracts does not predict allergy to specific species within an adult fish allergic population

  Allergic patients Non-allergic patients** P-value Se Sp Atopic controls (n = 15)
  sIgE kU/L (IQR) sIgE kU/L (IQR)     sIgE (IQR) kUA/L Sp***
Cod 9.2 (0.8-17.4) 0.9 (0.3-3.4) 0.16 82 25 0.03 (0.01-0.06) 93
Salmon 2.9 (0.5-21.3) 1.6 (0.4-3.1) 0.41 81 25 0.01 (0.00-0.20) 93
Eel 0.7 (0.1-22.1) 0.5 (0.1-2.7) 0.71 63 50 0.00 (0.00-0.03) 93
Herring 6.0 (0.4-43.7) 6.2 (0.3-7.5) 0.61 79 67 0.00 (0.00-0.09) 93
Pollock 6.9 (1.0-32.5) 1.5 (0.8-6.0) 0.52 69 0 0.01 (0.00-0.10) 87
Tuna 2.0 (0.1-4.7) 0.7 (0.0-2.7) 0.50 67 43 0.02 (0.01-0.07) 93
Mackerel 0.5 (0.0-14.7) 0.3 (0.0-1.6) 0.43 64 50 0.01 (0.00-0.04) 93
Plaice 0.9 (0.1-24.2) 0.4 (0.1-2.7) 0.44 67 50 0.02 (0.01-0.07) 87
Pangasius 5.0 (0.7-26.8) 0.3 (0.1-1.0) 0.12 89 67 0.00 (0.00-0.05) 93
Tilapia 0.9 (0.0-31.5) 0.4 (0.1-3.1) 0.59 67 60 0.01 (0.00-0.04) 93
Sardine 7.9 (0.1-4.7) 1.0 (0.2-2.2) 0.54 56 75 0.01 (0.00-0.04) 93
Swordfish 1.3 (0.0-64.4) 0.9 (0.4-4.6) 0.72 50 0 0.05 (0.03-0.10) 87
Hake 18.9 (0.7-92.3) 2.1 (0.4-3.7) 0.36 100 0 0.04 (0.03-0.20) 87
  1. IQR, interquartile range; Se, Sensitivity; Sp, Specificity.
  2. *Only patients of whom serum was analyzed (32 of 38 patients).
  3. **Patients were considered non-allergic if they had eaten the specific fish species without symptoms.
  4. ***Specificity when only analyzing the atopic control group.