The mRNA expression of MUC1 in induced sputum cells was negatively correlated with FEV1 (% predicted) and FEV1/FVC for patients with asthma (n = 52) (Fig. 1B and C) and positively correlated with the proportion of neutrophils in induced sputum (Fig. 1D). The gene discussed is MUC1; the disease is asthma.