(32) found no statistically significant variation in concentrations of KL-6 between patients suffering from AHP (n = 35) and patients suffering from CHP (n = 57) (3350 ± 3246 vs. 1639.9 ± 1250.3 U/ml, p > 0.05) (Table 2). This evidence concerns the gene MUC1 and anhaptoglobinemia.