Kernicterus pp 33-41 | Cite as

Premature Birth

Part of the Contemporary Clinical Neuroscience book series (CCNE)


Definitions of premature birth vary. A definition of prematurity in which birth weight is less than 5.5 lb could include low birth weight, but not premature (in weeks of age). Definitions based on a gestational age of less than 39 weeks might not be accurate. It is relatively clear that morality rates are closely related to gestational age. For example, the mortality rate in a group of infants weighing between 2.2 and 3.3 lb was about 50%, and in infants less than 30 weeks, the mortality rate was 63%. Approximately, two thirds of all newborn mortality is linked to premature birth. The incidence of premature birth in the USA is 7%.


Cerebral Palsy Preterm Birth Bilirubin Level Preterm Delivery Bacterial Vaginosis 
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© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  1. 1.Department of Cell Biology & AnatomyRosalind Franklin University of Medicine & Science, Chicago Medical SchoolNorth ChicagoUSA

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