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Objective To evaluate the prevalence of chronic respiratory morbidity (CRM) in preterm infants (born ≤28 weeks gestational age (GA)) and compare healthcare resource utilization and costs among infants with/without CRM, and with/without bronchopulmonary dysplasia (BPD). Methods Commercial claims data from the Truven MarketScan database were retrospectively analyzed. Included infants were born ≤28 weeks GA and admitted to a neonatal intensive care unit (January 2009-June 2016). Continuous insurance eligibility was required from birth through 1 year (CRM/no CR