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Table 5 Variables and their assigned severity score used in calculation of Simplified Acute Physiologic Score II (SAPS II)

From: Nosocomial and ventilator-associated pneumonia in a community hospital intensive care unit: a retrospective review and analysis

Variable Range Points
Patient age < 40 years 0
40-59 years 7
60-69 years 12
70-74 years 15
75-79 years 16
> 80 years 18
Type of admission Scheduled surgery 0
Medical 6
Unscheduled surgery 8
Temperature < 39° C, < 102.2° F 0
≥ 39° C, ≥ 102.2° F 3
Systolic blood pressure ≥ 200 mmHg 2
100-199 mmHg 0
70-99 mmHg 5
< 70 mmHg 13
Heart rate ≥ 160 bpm 7
120-159 bpm 4
70-119 bpm 0
40-69 bpm 2
< 40 bpm 11
Glasgow coma scale 14-15 0
11-13 5
9-10 7
6-8 13
< 6 26
Urine output ≥ 1 L/24 hours 0
0.5-0.999 L/24 hours 4
< 0.5 L/24 hours 11
White blood cell count < 1000/ mm3 12
1000-19,000/mm3 0
≥ 20,000/mm3 3
Blood urea nitrogen ≥ 30 mmol/L, ≥ 84 mg/dL 10
10-29.9 mmol/L, 28-83 mg/dL 6
< 10 mmol/L, < 28 mg/dL 0
Potassium level < 3 mEq/L 3
3-4.9 mEq/L 0
≥ 5mEq/L 3
Sodium level < 125 mEq/L 5
125-144 mEq/L 0
≥ 145 mEq/L 1
Bicarbonate level < 15 mEq/L 6
15-19 mEq/L 3
≥ 20 mEq/L 0
Bilirubin level < 4 mg/dL, < 68.4 micromol/L 0
4-5.9 mg/dL, 68.4-102.5 micormol/L 4
≥ 6 mg/dL, ≥ 102.6 micromol/L 9
PaO2/FiO2 (if mechanically ventilated or receiving CPAP) < 100 mmHg 11
100-199 mmHg 9
≥ 200 mmHg 6
AIDS Yes 17
No 0
Metastatic carcinoma Yes 9
No 0
Hematologic malignancy Yes 10
No 0