2000 Cohort and 98-2000 Cohort
Status
Completed
Results
2000 Cohort
Extremely low birth weight infants (401-1000 g) born during 2000 and who survived
discharge home were tracked and evaluated between 18 and 24 months corrected
age at participating Network Centers. Twenty-four Centers actively participated in this
year's project. One thousand one hundred and ninety-nine infants survived and were
eligible for follow-up. Of those infants, 695 received health and
neurodevelopmental status evaluations.
One third of these evaluated infants were severely growth retarded
(< 3rd percentile body size) and 11.5% had microcephaly (< 3rd percentile head size).
Forty one percent of the infants were rehospitalized and 32% required rehospitalization
for a surgical procedure. Overall, 31% had severe disability defined as having one of
the following: bilateral blindness (1.2%), hearing impairment requiring
amplification (2%), inability to walk with support (5%), cerebral palsy (7.6%),
or Bayley mental development index score < 70 (23.6%).
1998-2000 Cohort
Extremely low birth weight infants (401-1000 g) born between 1998-2000
who survived discharge home are being tracked and evaluated between 18
and 24 months corrected age at participating Network Centers.
Twenty-four centers actively participated. Data completed for the 2000
Cohort year was combined with data for the completed 1998 and 1999 cohorts
and analyzed as a three year cohort. Three thousand forty six infants
survived and were eligible for follow-up. Of those infants, 1775 received
health and neurodevelopmental status evaluations. One third of these evaluated
infants were severely growth retarded (< 3rd percentile body size)
and 12.5% had microcephaly (< 3rd percentile head size). Forty two
percent of the infants were rehospitalized and 32% required rehospitalization
for a surgical procedure. Overall, 31% had severe disability defined as
having one of the following: bilateral blindness (1.2%), hearing impairment
requiring amplification (2%), inability to walk with support (5%),
cerebral palsy (7.7%), or Bayley mental development index score < 70
(23%).
Publications and Presentations
Results were presented at the Society for Pediatric Research Meeting held in Seatte, May 2004.
Mercier C, Conner J, Howard D, Cohen H, Dunn M, Magoon M, Wilson-Costello D, Soll R, and the Vermont Oxford Network Follow-Up Study Group. More than 1001 Infants Weighing Less Than 1001 Grams (g) at Birth: Health and Developmental Outcome. Pediatric Research 2004: 55;4 482A.
Disclosure
No information to disclose