Skip to main content

Table 3 Risk prediction model for 30-day mortality among adult inpatients with C. difficile infections and the risk points

From: Risk prediction for 30-day mortality among patients with Clostridium difficile infections: a retrospective cohort study

Variables

Regression coefficients (βs)

Risk pointa

Age > 65 years old

0.4179

4

Malignancy

0.6656

7

WBC in tertiles, cells/mm3

 First tertile: < 9440

Reference

0

 Second tertile: 9440 to < 14,600

−0.2299

−2

 Third tertile: ≥14,600

0.0930

1

Rise in SCr ≥1.5-fold

0.8212

9

Albumin < 2.5 g/dL

0.4226

5

Glucose in tertiles, mg/dL

 First tertile: < 142

Reference

0

 Second tertile: 142 to < 193

0.4993

5

 Third tertile: ≥193

0.7784

8

BUN-to-SCr ratio > 20

0.7119

8

  1. Abbreviations: BUN blood urea nitrogen, SCr serum creatinine, WBC white blood cell count
  2. aWe assigned each variable a risk point by dividing the corresponding regression coefficient by the absolute smallest coefficient (i.e., 0.0930) and rounding it to the nearest integer.