The score for heart disease variable cut-off:

1. point for no heart failure
2. point for diuretic, digoxin or angina/hypertension medicine usage

4 point for peripheral edema, warfarin, or borderline cardiomegaly on chest X-ray (CXR)

The score for lung disease variable cut-off:

1. point for no dyspnea
2. points for exertional dyspnea or mild COPD on CXR

4 points for limiting dyspnea or moderate COPD on CXR 8 points for dyspnea at rest or fibrosis/consolidation on CXR

The score for ECG abnormality variable cut-off:

1 point for normal ECG 4 points for atrial fibrillation (HR 60-90 8 points for 5 ectopic beats/min, Q waves or ST/T wave change

The score for systolic blood pressure variable cut-off:

1. point for 110 - 130 mmHg
2. points for 100-109 mmHg or 131-170 mmHg

4 points for > 170 mmHg or 90-99 mmHg 8 points for < 90 mmHg

The score for pulse rate variable cut-off:

1. point for 50-80 beats per minute (bpm)
2. points for 40-59 bpm or 81-100 bpm

4 points for 101-120 bpm 8 points for > 121 bpm or < 40 bpm

The score for hemoglobin variable cut-off:

1. point for 13-16 g/dL
2. points for 11.5-12.9 or 16.1-17 d/dL

4 points for 10-11.4 or 17.1-18 g/dL 8 points for <10 or >18 g/dL

The score for leukocyte count variable cut-off:

1. point for 4.000-10.000/mm3
2. points for 10.100-20.000 atau 3.100-4.000/mm3

4 points for >20.000 atau <3.000/mm3

The score for plasma potassium concentration variable cut-off:

1. point for 3.5-5 mmol/L
2. points for 3.2-3.4 or 5.1-5.3 mmol/L

4 points for 2.9-3.1 or 5.4-5.9 mmol/L 8 points for <2.9 or >5.9 mmol/L

The score for plasma sodium concentration variable cut-off:

1. point for >135 mmol/L
2. points for 131-135 mmol/L

4 points for 126-130 mmol/L 8 points for <126 mmol/L

The score for number of procedures variable cut-off:

1 point for one 4 points for two 8 points for more than two

The score for intraoperative blood loss variable cut-off:

1. point for <100 mL
2. points for 101-500 mL

4 points for 501-999 mL 8 points for > 999 mL

The score for peritoneal contamination/soiling variable cut-off:

1. point for none
2. points for minor (serous fluid)

4 points for local pus 8 points for free bowel content, pus or blood

The score for presence of malignancy variable cut-off:

1. point for none
2. points for primary only

4 points for nodal metastases 8 points for distant metastases

The score for mode of surgery variable cut-off:

1 point for elective 4 points for emergency resuscitation of > 2 hours possible operation < 24 hours after admission 8 points for emergency (immediate surgery < 2 hours needed)