2005 Cohort and 2001-2005 Cohort
Status
Completed
Results
2005 Cohort
Extremely low birth weight infants (401-1000 grams or 22 weeks 0 days to 27 weeks 6 days gestational age), born during 2005 and who survived discharge were tracked
and evaluated between 18 and 24 months corrected age at participating Network centers.
Thirty-four centers actively participated in this year's project. One thousand seven hundred and
twenty-nine infants survived and were eligible for follow-up. Of those infants, 873 received health and
neurodevelopmental status evaluations. Twenty-seven percent of these evaluated infants were severely growth
retarded (< 3rd percentile body size) and 13% had microcephaly (< 3rd percentile head size). Thirty-four percent of
the infants were rehospitalized and 24% required rehospitalization for a surgical procedure. Overall, 24.6%
had severe disability defined as having one of the following: bilateral blindness (.8%), hearing impairment
requiring amplification (1.8%), inability to walk with support (4.4%), cerebral palsy (7.3%), or Bayley mental
development index score < 70 (21%).
2001-2005 Cohort
Extremely low birth weight infants (401-1000 g) born between 2001-2005 who survived discharge home are
being tracked and evaluated between 18 and 24 months corrected age at participating Network Centers.
Thirty-four centers actively participated. Data completed for the 2005 Cohort year was combined with data
for the completed 2001, 2002, 2003 and 2004 cohorts and analyzed as a five year cohort. Six thousand
six hundred and thirty-six infants survived and were eligible for follow-up. Of those infants, 3745
received health and neurodevelopmental status evaluations. Thirty percent of these evaluated infants were
severely growth retarded (< 3rd percentile body size) and 13% had microcephaly (< 3rd percentile head size).
Thirty-seven percent of the infants were rehospitalized and 27% required rehospitalization for a surgical procedure.
Overall, 31.5% had severe disability defined as having one of the following: bilateral blindness (.9%),
hearing impairment requiring amplification (1.6%), inability to walk with support (4%), cerebral palsy (7.5%),
or Bayley mental development index score < 70 (23%).
In addition we are also using a parental interview and questionnaire.
This will attempt to correlate parental perception of infant's status with the
information gained from medical evaluation.
Publications and Presentations
None
Disclosure
No information to disclose