MUC1 and AIDS dementia complex: In patients with lung ADC, a significant correlation between the rs4072037 genotype and serum KL-6 levels was observed in those with T1 or T2 (Fig. 2b, P < 0.001), N0 or N1 (Fig. 2c, P = 0.002) and M0 (Fig. 2d, P < 0.001), but not in those with T3 or T4 (Fig. 2b, P = 0.882), N2 or N3 (Fig. 2c, P = 0.616) and M1a or M1b (Fig. 2d, P = 0.501).