Fig. 1

Association between Albumin and 90-day (A) and 1-year (B) all-cause mortality in AKI patients. Restricted cubic spline (RCS) regression models show a linear relationship between albumin and patient mortality, with solid purple lines representing a smooth curve fit between the variables. The pink areas represent 95% confidence intervals for the fit. All data were adjusted for age, sex, Critical AKI, CHD, Sepsis, cancer, HF, Scr (baseline), Glu, ALP, MCHC, Hb, CRP, RDW, WBC, BNP, HA-AKI, ICU, PPI, Diuretic and ARB, CRRT