Table 2 Univariate and multivariable analyses for the relationship between the candidate risk factors and 3-year mortality in the primary cohort

Age, years

1.07 (1.05–1.08)

1.08 (1.06–1.10)

Gender, female

1.38 (1.05–1.83)

CHF

3.74 (2.87–4.87)

2.37 (1.76–3.18)

Renal failure

3.29 (2.27–4.78)

Mean DBP, mmHg

0.96 (0.94–0.98)

Hemoglobin, g/dL

0.92 (0.85–0.99)

WBC, 10⁹/L

1.03 (1.00–1.05)

1.04 (1.02–1.07)

APTT, second

1.02 (1.01–1.02)

Creatinine, U/L

1.55 (1.36–1.77)

1.43 (1.24–1.66)

BUN, mg/dL

1.05 (1.04–1.06)

SpO2 (%)

0.97 (0.96–0.98)

0.98 (0.97–0.99)

Anion gap, mmol/L

1.18 (1.13–1.24)

1.06 (1.01–1.12)

Sodium, mmol/L

0.96 (0.92–1.00)

CRRT

43.75 (16.77–114.11)

33.53 (12.63–107.10)