Research Article

Association of Neutrophil–Lymphocyte Ratio and the Presence of Neonatal Sepsis

Table 1

Baseline characteristics of control, infection, and sepsis group.

VariablesControls ()Infection ()Sepsis ()

Age (days)7.0 (5.0, 12.0)7.0 (4.0, 12.0)10.0 (5.0, 17.0)bc<0.001
Male, (%)115 (61.2%)318 (57.3%)453 (61.5%)0.295
Weight (kg)c0.014
Temperature (°C)bc<0.001
Respiratory (rate/minute)bc<0.001
Heart rate (bpm)bc<0.001
SBP (mm Hg)0.439
DBP (mm Hg)0.063
PCT (ng/mL)0.11 (0.09, 0.18)0.14 (0.10, 0.25)a0.31 (0.14, 1.52)bc<0.001
hsCRP (mg/L)0.7 (0.7, 0.7)0.7 (0.7, 0.7)0.7 (0.7, 13.48)bc<0.001
Biochemical parameters
 TBIL (μmol/L)306.4 (262.3, 357.7)298.2 (230.9, 355.8)a132.0 (45.4, 216.1)bc<0.001
 AST (U/L)34.4 (28.5, 46.8)37.9 (30.2, 51.0)a38.5 (27.9, 55.2)0.078
 ALT (U/L)24.3 (17.6, 30.3)25.5 (20.0, 33.2)28.5 (21.8, 37.8)bc<0.001
 TP (g/L)bc<0.001
 ALB (g/L)bc<0.001
 UREA (mmol/L)2.2 (1.3, 2.9)2.3 (1.5, 3.2)3.1 (1.9, 4.4)bc<0.001
 CREA (μmol/L)49.6 (41.0, 57.9)51.0 (42.0, 59.3)47.3 (37.4, 63.1)c0.057
 UA (μmol/L)135.5 (104.9, 186.5)137.9 (103.1, 182.5)147.8 (109.9, 205.0)bc0.003
Hematologic parameters
 WBC (109 cells/L)9.45 (7.92, 11.67)10.03 (8.10, 12.39)9.99 (7.27, 14.13)0.253
 Neutrophil count (109 cells/L)3.72 (2.82, 5.49)4.29 (3.16, 6.07)a5.07 (3.07, 8.58)bc<0.001
 Lymphocyte count (109 cells/L)4.10 (3.15, 4.86)3.94 (2.95, 5.18)3.34 (2.11, 4.78)bc<0.001
 NLR0.92 (0.63, 1.45)1.07 (0.75, 1.84)a1.65 (0.85, 3.07)bc<0.001

All values are presented as the or (%) or as the median (interquartile range). SBP, systolic blood pressure; DBP, diastolic blood pressure; PCT, procalcitonin; TBIL, total bilirubin; AST, aspartate aminotransferase; ALT, alanine aminotransferase; TP, total protein; ALB, albumin; UREA, urea nitrogen; CREA, creatinine; UA, uric acid; WBC, white blood cell; hsCRP, high-sensitivity C-reactive protein; NLR, neutrophil-to-lymphocyte ratio. a for infection vs. control. b for sepsis vs. control. c for sepsis vs. infection.