Table 4 Performance of the clinical physiology parameters in predicting gram-negative bacterial infection in adult patients with suspected bacterial infection in emergency department

BT ≥ 38.5 °C

0.32 (0.26–0.37)

0.85 (0.82–0.88)

0.54 (0.46–0.61)

0.70 (0.66–0.74)

RR ≥ 20 breaths/min

0.50 (0.44–0.56)

0.67 (0.63–0.71)

0.45 (0.39–0.50)

0.71 (0.67–0.75)

GCS < 14

0.60 (0.54–0.66)

0.55 (0.51–0.59)

0.42 (0.37–0.47)

0.72 (0.68–0.77)

HR ≥ 110 beats/min

0.45 (0.39–0.51)

0.67 (0.64–0.72)

0.43 (0.37–0.48)

0.70 (0.66–0.74)