SPT wheal | Specific IgE (kUA/L) | Suggested cut-off for OFCs | |
---|---|---|---|
Nowak-Wegrzyn et al. [20] | CM < 5 mm = 100 % NPV [poor specificity] | CM IgE ≥35 = >50 % PPV | CM IgE 5.0 kU/L |
CM 15 mm = 50 % PPV | |||
Caubet et al. [21] | N/A | CM IgE 24.5 = 69 % PPV [poor sensitivity] | Casein IgE 5 kUA/L |
Casein IgE 20.2 = 69 % PPV [poor sensitivity] | CM IgE 10 kUA/L | ||
Casein IgE 4.95 = 89 % NPV | |||
Bartnikas et al. [22] | CM <7 mm = 100 % NPV | CM IgE >20.6 = 100 % PPV | N/A |
Casein >15 mm = 100 % PPV | Casein IgE >10.3 = 100 % PPV | ||
Casein IgE 0.9 = 90 % NPV [poor sensitivity and specificity] |