The Association of Urbanicity with Cognitive Development at Five Years of Age in Preterm Children.

Objective: To determine the association of urbanicity, defined as living in an urban area, with cognitive development at five years of age in preterm children who were free of any disabilities or neurodevelopmental delays.

Design: Prospective population-based cohort.

Setting: French regional Loire Infant Follow-up Team (LIFT) network.

Severe bronchiolitis in infants born very preterm and neurodevelopmental outcome at 2 years.

Preterm infants are at greater risk of bronchopulmonary dysplasia, which is associated with neurodevelopmental impairment. These infants are also more likely to develop severe bronchiolitis, which can contribute to neurodevelopmental impairment. The aim of this study was to determine whether severe bronchiolitis in very preterm infants (born before 33 weeks of gestation) was associated with an increased risk of neurodevelopmental impairment at 2 years of age.