KLF7 and squamous cell carcinoma: To explore the association between KLF7 expression and squamous carcinoma prognosis, we divided the 498 patients with squamous carcinoma with complete survival information into two groups according to the median KLF7 expression value (11.62) and plotted the overall survival curve for every subgroup using the Kaplan–Meier method as shown in Fig. 3A.