Statistical analysis
Data analysis was performed using Stata Statistical Software Release 17 College Stations, TX. StataCorp LLC. Mann Whitney and Kruskall-Wallis tests were performed to compare clinical characteristics and biomarkers between peanut allergic and PS children and for sub-group analysis. Logistic regression models were also used to determine if any covariates predicted PA status at 7-11 years. Univariate analysis was performed to look at covariates affecting PA at 7-11y followed by multivariable regression models to compare all biomarkers at each time point (i.e. SPT, peanut sIgE, Ara h 2-sIgE, MAT at 12 months) and another to look at longitudinal comparison of single biomarkers at all 3 time points (i.e. SPT at 12m, 36m, 7-11y) in predicting PA status at 7-11y.