Box plot of nonrenal SOFA score between fluid-overloaded patients with low creatinine (Cr < 4 mg/dL) and with high creatinine (Cr ≥ 4 mg/dL) in the MIMIC dataset.

The low-creatinine (Cr Kruskal–Wallis test, P (PNG)</p

Kaplan–Meier survival curves for 30-day mortality in patients with or without fluid overload in the eICU dataset.

A. The unadjusted 30-day mortality rate increased in the fluid-overloaded group. B. In patients with fluid overload, the low-creatinine (Cr < 4 mg/dL) group was associated with worse survival. C. In low-creatinine group, fluid-overloaded patients were associated with worse survival.</p

Percentages of missing data.

(DOCX)</p

Baseline characteristics of the study population by the median of creatinine level.

Baseline characteristics of the study population by the median of creatinine level.</p

Box plots of SOFA and nonrenal SOFA scores between patients with low creatinine (Cr < 4 mg/dL) and with high creatinine (Cr ≥ 4 mg/dL) in the MIMIC dataset.

The low-creatinine (Cr Kruskal–Wallis test, P (PNG)</p

Box plot of nonrenal SOFA score between the low-creatinine (Cr < 4 mg/dL) group and the high-creatinine (Cr ≥ 4 mg/dL) group in fluid-overloaded patients.

The low-creatinine (Cr Kruskal–Wallis test, P < 0.0001).</p

Kaplan–Meier survival curves for 30-day mortality by albumin and BMI in the eICU dataset.

The low-creatinine group had a higher 30-day mortality rate in four groups. (PNG)</p

Additional file 1 of Predicting hyperkalemia in patients with advanced chronic kidney disease using the XGBoost model

Supplementary Materials: Table S1. ICD-9 and ICD-10 diagnostic codes used to identify comorbidities. Table S2. Medications used in this study. Table S3. Logistic regression analyses yielding odds ratios for factors associated with hyperkalemia in patients with advanced chronic kidney diseas

Kaplan-Meier curve of overall patient survival according to the RDW groups (log-rank test, p<0.001).

<p>Kaplan-Meier curve of overall patient survival according to the RDW groups (log-rank test, p<0.001).</p

Kaplan-Meier curve of cumulative survival free of infection related mortality according to the RDW groups (log-rank test, p<0.001).

<p>Kaplan-Meier curve of cumulative survival free of infection related mortality according to the RDW groups (log-rank test, p<0.001).</p