Table 2 Cox multivariate regression models in the training cohort

Gender

 Male

978

308

Ref

-

-

 Female

899

224

0.65

0.55, 0.78

 < 0.001

Age

1,877

532

1.07

1.06, 1.08

 < 0.001

PIR

 < 1

461

135

Ref

-

-

 1–3

908

289

0.83

0.67, 1.02

0.072

 > 3

508

108

0.55

0.42, 0.71

 < 0.001

Heart failure

 No

1,648

419

—

—

 Yes

229

113

1.74

1.41, 2.16

 < 0.001

BMI

 < 25

247

105

—

—

 25–30

513

154

0.64

0.50, 0.82

 < 0.001

 > 30

1,117

273

0.51

0.41, 0.65

 < 0.001

Albumin g/L

1,877

532

0.90

0.88, 0.92

 < 0.001

BUN mmol/L

1,877

532

1.07

1.05, 1.09

 < 0.001

UA mg/dL

1,877

532

1.07

1.02, 1.13

0.011