452 Associations between Behavioral and Sleeping Disorders in Preterm Children to Catch Up in Height and Weight

Aim To study an association between sleeping (SP) and behavioural disorders (BP) in preterm children to catch-up growth and weight. Design and Methods 105 children (8.5–10 years): 39 born preterm ( Results The Preterm group displayed a higher incidence of SP (23% vs 10% and 3% p=0.026) and BP (38% vs 10% and 8%, p=0.001). ○ Preterm AGA no BP• Preterm AGA with BP ⋄ Control no BP The black dotted line: Controls without BP (r=0.69, p At 9 years, preterm AGA with BP (n=13) had lower length SDS (p=0.003), weight SDS (p=0.006) and head circumference SDS and a tendency to lower height catch-up (p=0.09) compared to preterm AGA without BP (n=18). Fasting levels of IGF-I, insulin and leptin were lower in all Preterms with BP. Preterms with SP (n=8) had a lower height catch-up (p=0.009) compared to those without SP (n=30). Conclusion Children born preterm have an increased risk for SP and BP. These disorders are associated with reduced catch up in height.