Table 1.

Bloodstream infection mortality risk score

Variable	Point allocation
Malignancy	3
Liver cirrhosis	4
Source of infection other than urinary tract or central venous catheter Pitt bacteremia score*	4
0–1	0
2–3	2
≥ 4	5

^*Pitt bacteremia score was calculated based on temperature (35.1–36 or 39.0–39.9 C: 1 point, ≤ 35 or ≥ 40 C: 2 points), blood pressure (hypotension: 2 points), mental status (disorientation: 1 point, stupor: 2 points, coma: 4 points), respiratory status (mechanical ventilation: 2 points) and cardiac status (cardiac arrest: 4 points). The worst reading was recorded on the day the first positive blood culture was obtained or the day before for nosocomial bloodstream infections.