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J Pediatr. 2012 Dec;161(6):1073-9. doi: 10.1016/j.jpeds.2012.05.036. Epub 2012 Jun 23.

Healthy newborns' neurobehavior: norms and relations to medical and demographic factors.

Author information

1
Department of Newborn Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.

Abstract

OBJECTIVE:

To generate neurobehavioral norms for an unselected random sample of clinically healthy newborns by examining the newborns with use of the Neonatal Intensive Care Unit Network Neurobehavioral Scale (NNNS).

STUDY DESIGN:

We recruited 344 healthy mothers and newborns from a well-child nursery. The NNNS, a 128-item assessment of infant neurobehavior, was used to examine newborn performance. Associations between 11 NNNS summary scales and the stress/abstinence scale, as well as medical and demographic variables, were evaluated. Mean, SD, and 5th and 95th percentile values for the summary scores of the NNNS are presented.

RESULTS:

NNNS scores from the 10th to the 90th percentile represent a range of normative performance. Performance on different neurobehavioral domains was related to marital status, ethnicity, prenatal, intrapartum and neonatal risk factors, complications during labor/delivery, cesarean delivery, gestational age, the age of the newborn at testing, and infant sex.

CONCLUSION:

These data provide clinicians and researchers with normative data for evaluation of newborn neurobehavior. Even in a low-risk sample, medical and demographic factors below clinical cut-offs were related to newborn performance. Infants with scores outside the ranges for the 11 NNNS summary scores and the stress/abstinence scale may need further observation and, if necessary, early intervention.

PMID:
22727876
DOI:
10.1016/j.jpeds.2012.05.036
[Indexed for MEDLINE]

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