biostudies-literatureUnknown11(5)Shoji HWe aimed to determine the differences in the growth trajectories of the youngest gestational survivors (<25 weeks' gestation) up to 6 years of age compared to those of older gestational ages. Preterm infants were divided into two groups: 22-24 weeks' gestation (male (M) 16, female (F) 28) and 25-29 weeks' gestation (M 84, F 59). Z-scores of body weight (BW), body length (BL), and body mass index (BMI) were derived from Japanese standards at 1, 1.5, 3, and 6 years of corrected age. Comparisons between the two groups by sex were made using the Wilcoxon test and linear regression analysis to examine the longitudinal and time-point associations of anthropometric z-scores, the presence of small for gestational age (SGA), and the two gestational groups. BW, BL, BMI, and z-scores were significJournal of clinical medicine1418https://www.ebi.ac.uk/biostudies/studies/S-EPMC8911231biostudies-literatureGrowth Trajectories during the First 6 Years in Survivors Born at Less Than 25 Weeks of Gestation Compared with Those between 25 and 29 Weeks.PMC8911231Nishizaki NObinata KNojiri SShimizu TShoji HHisata KKantake MArai YOhkawa NAwata KIkeda NMurano YSuganuma HfalseGrowth Trajectories during the First 6 Years in Survivors Born at Less Than 25 Weeks of Gestation Compared with Those between 25 and 29 Weeks.We aimed to determine the differences in the growth trajectories of the youngest gestational survivors (<25 weeks' gestation) up to 6 years of age compared to those of older gestational ages. Preterm infants were divided into two groups: 22-24 weeks' gestation (male (M) 16, female (F) 28) and 25-29 weeks' gestation (M 84, F 59). Z-scores of body weight (BW), body length (BL), and body mass index (BMI) were derived from Japanese standards at 1, 1.5, 3, and 6 years of corrected age. Comparisons between the two groups by sex were made using the Wilcoxon test and linear regression analysis to examine the longitudinal and time-point associations of anthropometric z-scores, the presence of small for gestational age (SGA), and the two gestational groups. BW, BL, BMI, and z-scores were signific2022-01-01T00:00:00Z2022 Mar2025-04-25T23:03:10.623Z2025-04-06T09:13:54.807ZS-EPMC89112313526850910.3390/jcm11051418