Reproducibility was assessed from samples of 4 individuals of EGEA2 survey which were measured on each of the 6 arrays. For each virus-specific IgG level, the mean of the CV calculated for each of the four individuals is reported. Distributions of virus-specific IgG data are presented as median [interquartile range] of the calibrated and corrected for the background level values (before normalization) and expressed in FI.
IgG: Immunoglobulin G; CV: coefficient of variation; ICC: intra-class correlation coefficient; EGEA: Epidemiological study on the Genetics and Environment of Asthma; RSV: respiratory syncytial virus; RV: rhinovirus.
Table 3. Annual changes of RSV and RV-specific IgG levels in individuals with data both in childhood and adulthood (n=270)