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Table 1 Baseline demographic and clinical characteristics of participants, as stratified by the presence or absence of fever

From: Predictive value of the neutrophil-to-lymphocyte ratio for epidural labor analgesia-associated intrapartum fever: a retrospective single-center study

variables

Fever group n = 160

Non-febrile group n = 1442

P

WBC(109/L)

10.05(8.63–14.13)

8.76(7.45–10.21)

<0.001

WBC>9.5 × 109/L

93(58.1)

519(35.9)

<0.001

NEU(109/L)

7.9(6.3-12.89)

6.58(5.45–7.842)

<0.001

NEU>6.3 × 109/L

117(73.1)

784(54.4)

<0.001

LYM(109/L)

1.32(0.985–1.61)

1.47(1.235–1.807)

<0.001

LYM<1.1 × 109/L

57(35.6)

194(13.5)

<0.001

LYM %

12.5(7.55–17.85)

16.95(14.075–21.2)

<0.001

NLR

6.49(4.22–11.46)

4.53(3.43–5.64)

<0.001

Age(years)

28.4 ± 2.9

28.6 ± 3.1

0.58

BMI(Kg/m2)

27 ± 3.02

26.17 ± 2.89

0.018

First-stage labor(min)

696.6 ± 196.8

591.3 ± 239.7

<0.001

Newborn weight(g)

3268.8 ± 374

3231 ± 355

0.36

Dilation of the uterus ≤ 2 cm

139(86.9)

963(66.8)

<0.001

PROM

31(19.3)

291(20.1)

0.89

MSF

25(15.6)

107(7.42)

0.0012

Number of vaginal examinations

5(4–7)

4(3–6)

<0.001

Total delivery time(min)

770.4 ± 203.6

688.4 ± 338.3

<0.001

  1. Variables were presented as the median (IQR); IQR, interquartile range. Continuous variables were presented as mean ± SD, counting variables were presented as number (percentage); SD, standard deviation
  2. Abbreviations. WBC, white blood cell; BMI, body mass index; NEU, neutrophil; LYM, lymphocyte; LYM %, lymphocyte percentage; NLR, Neutrophil-to-lymphocyte ratio; NEU, neutrophils; PROM, premature rupture of membranes; MSF, Meconium-Stained Fluid