title: Growth of very low birth weight infants at 12 months corrected age in southern Brazil.
abstract: The objective of this article is to describe growth of very low birth weight infants born in southern Brazil. All infants weighing < or =1500 g were followed up until 12 months corrected age (CA). Growth was recorded at 40 weeks, 6 and 12 months CA. Catch up was considered if the measures were > or =-2 SD of World Health Organization growth charts for weight and length; and of National Center for Health Statistics for head circumference. One hundred and ninety three infants born were followed up for the study. At 40 weeks CA, 57.8% patients achieved catch-up in weight and 50.9% in length. At 6 months CA, 82.2% achieved catch-up for weight and length and at 1 year CA, 92% achieved catch-up in weight and 86.9% in length. Catch-up in head circumference was achieved for 93.4%, 85.9% and 85% patients at 40 weeks, 6 months and 12 months CA, respectively. At 12 months CA, no catch-up in weight, length and head circumference was related to higher SNAPPE-II (P = 0.046) and periventricular leukomalacia (PVL) (P = 0.003); longer time to achieve full enteral nutrition at the neonatal intensive care unit (NICU) (P = 0.037), lower maternal education (P = 0.018) and PVL (P = 0,003); higher SNAPPE-II (P = 0,004), PVL (P = 0.005) and longer time to achieve full enteral nutrition at the NICU (P = 0.044), respectively. In conclusion, PVL and higher SNAPPE-II were important factors to catch-up delay. Catch-up growth was high at 12 months CA.
authors.affiliation: Department of Pediatrics, Newborn Section, Universidade Federal do Rio Grande do Sul and Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil.
authors.forename: Mariana G
authors.initials: MG
authors.lastname: Oliveira
authors.forename: Rita C
authors.initials: RC
authors.lastname: Silveira
authors.forename: Renato S
authors.initials: RS
authors.lastname: Procianoy
mesh_terms: D001724:Birth Weight; D001827:Body Height; D001938:Brazil; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D041943:Infant Formula / Q000008:administration & dosage; D007226:Infant Mortality; D007231:Infant, Newborn; D019102:Infant, Very Low Birth Weight / Q000254:growth & development*; D007363:Intensive Care Units, Neonatal / Q000706:statistics & numerical data; D008297:Male; D008895:Milk, Human; D010289:Parenteral Nutrition, Total; D015430:Weight Gain