Prediction of In-Hospital Mortality in a Patient with Cirrhosis and Spontaneous Bacterial Peritonitis Based on the iMELD Score

Patient selection: cirrhosis with spontaneous bacterial pneumonia

Outcome: in-hospital mortality

Risk factors for in-hospital mortality:

(1) older age

(2) high serum creatinine

(3) high serum total bilirubin

(4) low serum sodium

Parameters for the iMELD:

(1) MELD (modified, which includes serum creatinine and serum total bilirubin)

(2) age in years

(3) sodium in mmol/L

iMELD =

= (MELD) + (0.3 * ((age)) - (0.7 * (sodium)) + 100

Interpretation:

• An iMELD score > 43.5 is associated with in-hospital mortality.

Performance:

• The area under the ROC curve is 0.86.