In the univariable Cox regression analysis (crude and age-adjusted), factors decreasing survival enclose: higher FGF21 levels, older age, diabetes, heart failure, past stroke, impaired kidney function, inflammatory state, vitamin D deficiency, lower albumin level, increased FIB-4 (fibrosis 4 index) values, and hyperuricemia (Table 3). Here, FGF21 is linked to vitamin D deficiency.