Fig. 1. The distribution of serum anti-dust EV IgG concentrations in the healthy control, asthma, COPD, and lung cancer groups. The dashed vertical line indicates the cutoff value that represents high serum anti-dust EV IgG levels. This cutoff value was defined as the 95 percentile value of the control subjects. The histograms are presented with normal distribution curves. Serum anti-EV: the concentration of serum IgG reactive to EVs in indoor dust.
