Table 3. Diagnostic Agreement between the Two Assays (Sensitivity and Specificity).
Allergens | Positive patients, n (%) | Total agreement ratio | p value* | Kappa index | p value† | |
---|---|---|---|---|---|---|
ImmunoCAP | AlloScreen | |||||
D. pteronyssinus | 37 (53.6) | 38 (55.1) | 0.93 | <0.001 | 0.85 | <0.001 |
D. farinae | 106 (64.6) | 109 (66.5) | 0.92 | <0.001 | 0.83 | <0.001 |
Cat dander | 29 (47.5) | 32 (52.5) | 0.95 | <0.001 | 0.90 | <0.001 |
Dog dander | 35 (50.7) | 32 (46.4) | 0.87 | <0.001 | 0.74 | <0.001 |
Alternaria | 26 (42.6) | 24 (39.3) | 0.97 | <0.001 | 0.93 | <0.001 |
Birch | 40 (57.1) | 47 (67.1) | 0.81 | <0.001 | 0.61 | <0.001 |
Oak | 30 (49.2) | 20 (32.8) | 0.74 | <0.001 | 0.47 | <0.001 |
Ragweed | 38 (52.8) | 25 (34.7) | 0.79 | <0.001 | 0.59 | <0.001 |
Mugwort | 31 (51.7) | 20 (33.3) | 0.82 | <0.001 | 0.64 | <0.001 |
Rye grass | 35 (53.8) | 23 (35.4) | 0.78 | <0.001 | 0.58 | <0.001 |
Egg white | 34 (44.7) | 21 (27.6) | 0.78 | <0.001 | 0.53 | <0.001 |
Cow's milk | 36 (52.2) | 27 (39.1) | 0.75 | <0.001 | 0.51 | <0.001 |
Peanuts | 31 (51.7) | 14 (21.9) | 0.87 | <0.001 | 0.74 | <0.001 |
D. farinae, Dermatophagoides farinae; D. pteronyssinus, Dermatophagoides pteronyssinus.
p values were calculated using *Pearson's chi-square test, †Cohen's kappa analysis.