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Table 4 Threshold effect analysis of GA and incidence of CRP ≥ 8 mg/L using piece-wise logistic regression

From: Factors influencing C-reactive protein status on admission in neonates after birth

 

OR (95%CI)

P-value

Model 1

  

One-line slope

1.25(1.15, 1.36)

<0.001

Model 2

  

Turning point(K)

33.9

 

 <K slope 1

0.72(0.61, 0.85)

<0.001

 >K slope 2

1.61(1.43, 1.81)

<0.001

LRT test

0.001

  1. Abbreviation: LRT, Likelihood Ratio Test
  2. Result variable: incidence of CRP ≥ 8 mg/L.
  3. Exposure variable: GA.
  4. Adjust for maternal fever, placenta previa, antenatal antibiotic use, PROM, pregnancy hypertension, gestational diabetes, ICP, meconium-stained amniotic fluid, prenatal dexamethasone use, maternal autoimmune diseases