Table 2.

The clinical characteristics of the BSI and non-BSI groups.

Clinical Variable	BSI (n = 1478)	Non-BSI (n = 3552)	p-Value	Standard Cut-off
Vital sign
Temperature (°C)	36.62 ± 0.49	36.66 ± 0.48	0.007
SBP (mmHg)	121.40 ± 14.95	123.78 ± 15.31	<0.001
DBP (mmHg)	66.46 ± 10.50	67.95 ± 10.79	<0.001
GCS	7.37 ± 3.20	7.56 ± 3.53	0.065
Heart rate (bpm)	93.36 ± 15.57	90.28 ± 15.58	<0.001
Respiratory rate (breath/min)	19.03 ± 3.53	18.65 ± 3.61	<0.001
Laboratory
Albumin (g/dL)	2.64 ± 0.55	2.84 ± 0.59	<0.001	3.5–5
Alkaline phosphatase (U/L)	211.00 ± 181.11	191.23 ± 220.81	0.015	50–190
BUN (mg/dL)	53.81 ± 37.91	42.31 ± 33.90	<0.001	5–25
Creatinine (mg/dL)	2.26 ± 1.90	1.94 ± 1.99	<0.001	0.5–1.4
CRP (mg/dL)	11.09 ± 8.99	9.93 ± 9.80	0.016	<0.3
Glucose (mg/dL)	180.08 ± 91.35	182.99 ± 103.07	0.574	70–200
HCO3-A (mmol/L)	23.38 ± 5.16	24.40 ± 5.24	<0.001	22–26
Hematocrit (%)	27.42 ± 4.78	29.26 ± 5.79	<0.001	37–52
Hemoglobin (g/dL)	9.13 ± 1.46	9.76 ± 1.79	<0.001	12–17.5
Potassium(K) (mEq/L)	3.90 ± 0.67	3.95 ± 0.67	0.011	3.5–5.3
Na (mEq/L)	140.26 ± 7.41	140.76 ± 7.01	0.024	137–153
pH (blood gas)	7.43 ± 0.07	7.43 ± 0.07	0.83	7.35–7.45
Platelet count (/UL)	140.39 ± 107.39	196.45 ± 125.71	<0.001	150–400
PO2-A (mmHg)	122.80 ± 49.18	124.50 ± 62.55	0.414	80–100
Prothrombin time (PT) (s)	13.98 ± 6.68	12.77 ± 5.48	<0.001	9.5–11.7
WBC (/UL)	11.81 ± 7.55	12.22 ± 7.13	0.066	3.5–11
Lactate (mg/dL)	18.32 ± 17.01	16.08 ± 14.54	<0.001	3.0–12
Clinical information
ICU day to blood culture, days	19.70 ± 17.53	8.99 ± 4.86	<0.001
Central venous catheter (h	1233.57 ± 2965.12	698.78 ± 3261.02	<0.001
ENDO (h)	2927.38 ± 5080.96	1600.29 ± 3972.20	<0.001
FOLEY (h)	528.04 ± 536.07	325.87 ± 632.31	<0.001

Abbreviations: BSI, bloodstream infections; Non-BSI, non-bloodstream infections; SBP, systolic blood pressure; DBP, diastolic blood pressure; GCS, Glasgow Coma Scale; BUN, blood urea nitrogen; CRP, C-reactive protein; WBC, white blood cell.