Table 3.

The ABC score.

Variable	Score
Age
60–74 years	1
≥75 years	2
Blood tests
Urea >10 mmol/L	1
Albumin <30 g/L	1
Creatinine (µmol/L)
100–150	1
>150	2
Co-morbidity
Altered Mental Status	2
Liver Cirrhosis	2
Disseminated Malignancy	4
ASA Classification
3	1
≥4	3