RISK FACTOR

POINTS

AAA Repair

15

Thoracic Surgery

14

Upper Abdominal Surgery

10

Neck Surgery

8

Neurosurgery

8

Vascular Surgery

3

Emergency Surgery

3

General Anesthesia

3

Age > 80

17

70-79

13

60-69

9

50-59

4

Totally dependent functionality

10

Partially dependent functionality

6

Weight loss > 10% in past 6 months

7

History of COPD

5

Impaired sensorium

4

History of CVA

4

BUN < 8

4

22-30

2

> 30

3

Steroid use for chronic condition

3

Current smoker within 1 year

3

Preoperative blood transfusion > 4 units

3

Alcohol intake > 2 drinks/day in past 2 weeks

2

TOTAL POINTS

RISK OF PNEUMONIA (%)

0-15

0.24

16-25

1.19

26-40

4.0

41-55

9.4

> 55

15.8