MUC2- and MUC5AC-positive cancers were more frequent in the LTHT cohort (MUC2 LTHT n = 129 (15%) vs. KCCH n = 44 (11%), p = 0.043; MUC5AC LTHT n = 289 (34%) vs. KCCH n = 98 (24%), p < 0.001), whereas ABPAS-positive cancers were more frequent in the KCCH cohort (KCCH n = 96 (23%) vs. LTHT n = 159 (19%); p = 0.037) (see also Table 1). Here, MUC5AC is linked to cancer.