Research Article

Neutrophil-to-Lymphocyte Ratio, Monocyte-to-Lymphocyte Ratio, Platelet-to-Lymphocyte Ratio, and Mean Platelet Volume-to-Platelet Count Ratio as Biomarkers in Critically Ill and Injured Patients: Which Ratio to Choose to Predict Outcome and Nature of Bacteremia?

Table 3

Baseline and laboratory characteristics of all patients according to blood cultures.

CharacteristicsGram-positive blood culturesGram-negative blood culturesPolymicrobial blood culturesNegative blood cultures value

Number of patients (%)65 (16.6%)15 (3.8%)184 (46.9%)128 (32.7%)
Males, number (%)40 (61.5%)11 (73.3%)96 (52.2%)89 (69.5%)
Age (years)50.46 ± 23.8159.33 ± 12.6653.71 ± 17.5554.59 ± 16.41
Mortality (%)18.5%26.7%71.2%25.0%
WBC count (109/L)13.95 ± 5.6313.03 ± 4.2712.20 ± 5.9912.85 ± 5.02
Neutrophil (109/L)11.10 (8.05–14.25)10.80 (9.09–15.40)10.20 (6.43–13.30)9.96 (7.41–13.40)
Lymphocyte (109/L)1.14 (0.84–1.60)0.92 (0.60–1.07)0.86 (0.58–1.26)0.97 (0.72–1.41)
Monocyte (109/L)0.63 (0.43–0.95)0.48 (0.28–1.15)0.56 (0.29–0.81)0.67 (0.38–1.04)
Platelet (109/L)229.02 ± 110.53280.26 ± 167.22215.99 ± 134.50280.35 ± 182.70
MPV (fL)8.77 ± 1.499.11 ± 1.379.40 ± 1.998.69 ± 1.50
MPV/PC ratio (fL 10−5μL−1)3.5 (2.4–5.7)5.3 (2.3–5.4)4.4 (2.8–7.7)3.5 (2.2–5.7)
NLR9.71 (5.84–12.52)11.44 (7.37–17.41)11.13 (7.18–17.08)11.35 (6.71–15.39)
MLR0.44 (0.33–0.93)0.54 (0.38–0.80)0.57 (0.35–1.03)0.67 (0.42–1.13)
PLR197.70 (139.53–274.90)228.38 (191.26–376.71)220.95 (161.51–376.52)264.00 (168.08–378.01)

Data are shown as number (%), mean (standard deviation, SD), or median (interquartile range, IQR) as appropriate. Significant differences are marked by () or ().