FIGURE 1.

Flowchart displaying selection criteria of the study population. (A) Present population selection for analysis of the association between serum Klotho and cancer. (B) Population selection was presented to analyze the relationship between serum Klotho and all‐cause mortality and specific‐cause mortality. The 10th revised edition (ICD‐10) was based on the International Statistical Classification of Diseases and Related health problems, classified cause of death: diseases of heart (054–064), malignant neoplasms (019–043) or all other causes (Residual) (010)