Low Prognostic Nutritional Index (PNI) Level is Associated with an Increased Risk of Neonatal Respiratory Distress Syndrome in Preterm Infants with Different Gestational Ages: A Retrospective Study.

12–14 The incidence of NRDS has an increasing trend. 15 , 16 NRDS has a high social burden globally, especially in low-income countries. 17 , 18 The lower the gestational age, the higher the incidence of NRDS, the incidence of ≤25 weeks of gestational age is approximately 91%, the incidence of 26–28 weeks of gestational age is approximately 58%, the

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