Abstract
To examine the association between mortality or neurodevelopmental impairment at 18-24months of corrected age and the Transport Risk Index of Physiologic Stability (TRIPS) score on admission to the neonatal intensive care unit (NICU) in extremely premature infants. Retrospective cohort study of extremely premature infants (inborn and outborn) born at 22-28weeks of gestational age and admitted to NICUs in the Canadian Neonatal Network between April 2009 and September 2011. TRIPS scores and clinical data were collected from the Canadian Neonatal Network database. Follow-up data at 18-24months of corrected age were retrieved from the Canadian Neonatal Follow-Up Network database. Neurodevelopment was assessed using the Bayley Scales of Infant and Toddler Development, Edition III. The primary outcome was death or significant neurodevelopmental impairment at 18-24months of corrected age. The secondary outcomes were individual components of the Bayley Scales of Infant and Toddler Development, Edition III assessment. A total of 1686 eligible infants were included. A TRIPS score of ≥20 on admission to the NICU was significantly associated with mortality (aOR 2.71 [95% CI, 2.02-3.62]) and mortality or significant neurodevelopmental impairment (aOR 1.91 [95% CI, 1.52-2.41]) at 18-24months of corrected age across all gestational age groups of extremely premature infants. The TRIPS score on admission to the NICU can be used as an adjunctive, objective tool for counselling the parents of extremely premature infants early after their admission to the NICU.
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