MUC5AC and clear cell adenocarcinoma: The hazard ratios ranged from the lowest risk histological types (SCC microinvasive, endometrioid, and papillary adenocarcinoma), through the intermediary risk types (the three SCC's and the adenocarcinoma NOS), to the highest risk types (clear cell adenocarcinoma, adenosquamous, mucin-secreting, mucous adenocarcinoma, and small cell carcinoma) (Figure 3).