Postnatal growth of etiologically characterized preterm newborns according to gestational age at birth.
Roggero P., Ryumina I., Gunier RB., Winsey A., Rauch SA., Zarco IAC., Ariff S., Rego MAS., Conti CS., Ochieng R., Tuzun F., Asibey J., Giuliani F., Renau MI., Shekharappa CB., Lapillonne A., Tavcioska G., Ismail LC., Menis C., Markelova M., Nieto R., Duah JA., Deantoni S., Madrid BF., Mosca F., Eskenazi B., Lambert A., Bhutta Z., Papageorghiou A., Kennedy S., Villar J.
OBJECTIVE: To examine the relationship between etiologically-based preterm birth sub-groups and early postnatal growth according to gestational age at birth. METHODS: Prospective, multinational, cohort study involving 15 hospitals that monitored preterm newborns to hospital discharge. Measures/exposures: maternal demographics; etiologically-based preterm birth sub-groups; very, moderate and late preterm categories, and feeding. PRIMARY OUTCOMES: serial anthropometric measures expressed as z-scores of the INTERGROWTH-21st preterm postnatal growth standards. RESULTS: We included 2320 singletons and 1180 twins: very=24.4% (n = 856, including 178