Table 6 The correlation between sIgE levels measured in current samples and allergen serum samples stored for different positive levels.

From: Impact of ultra-low temperature storage on serum sIgE detection and allergic disease biobank feasibility

sIgE

Correlation

Kappa

High level

rs = 0.367, P = 0.332

–

Medium level

rs = 0.994, P < 0.001

0.707

Low level

rs = 0.448, P = 0.145

0.81

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