Concentrations of κ and λ LC in serum of nonatopic and atopic adult asthma patients and nonatopic and atopic nonasthmatic subjects. (a) κ LC serum levels in nonatopic adult asthmatics (NAA; n = 14, black bar) compared with nonatopic healthy controls (NA; n = 34, open bar); **, P = 0.001. (b) κ LC serum levels in atopic adult asthmatics (AA; n = 17, black bar) compared with atopic nonasthmatics (A; n = 15, hatched bar) and nonatopic healthy controls (NA; n = 34, open bar); *, P = 0.023 compared with nonatopic healthy controls. (c) Correlation of λ LC vs. κ LC of nonatopic asthma patients (black diamond). (d) Correlation of λ LC vs. κ LC of nonatopic healthy individuals (open diamond). (e) Correlation of λ LC vs. κ LC of atopic asthma patients (black triangle). (f) Correlation of λ LC vs. κ LC of atopic nonasthmatic individuals (open triangle). r2, measure of goodness of fit of linear regression.