{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,17]],"date-time":"2026-02-17T11:03:12Z","timestamp":1771326192004,"version":"3.50.1"},"reference-count":26,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2022,3,4]],"date-time":"2022-03-04T00:00:00Z","timestamp":1646352000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>We aimed to determine the differences in the growth trajectories of the youngest gestational survivors (&lt;25 weeks\u2019 gestation) up to 6 years of age compared to those of older gestational ages. Preterm infants were divided into two groups: 22\u201324 weeks\u2019 gestation (male (M) 16, female (F) 28) and 25\u201329 weeks\u2019 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 significantly lower in the 22\u201324 weeks group at almost all assessment points. However, there were no significant differences in BW, BL, BMI, and z-scores between the two female groups after 3 years. BMI z-scores were significantly associated with the youngest gestational age and the presence of SGA at all ages in males, but not in females. The youngest gestational age had a greater influence in males on the z-score of anthropometric parameters up to 6 years of age.<\/jats:p>","DOI":"10.3390\/jcm11051418","type":"journal-article","created":{"date-parts":[[2022,3,6]],"date-time":"2022-03-06T20:38:16Z","timestamp":1646599096000},"page":"1418","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Growth Trajectories during the First 6 Years in Survivors Born at Less Than 25 Weeks of Gestation Compared with Those between 25 and 29 Weeks"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2532-8910","authenticated-orcid":false,"given":"Hiromichi","family":"Shoji","sequence":"first","affiliation":[{"name":"Department of Pediatrics, Faculty of Medicine, Juntendo University, Tokyo 113-8421, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yayoi","family":"Murano","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Faculty of Medicine, Juntendo University, Tokyo 113-8421, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shuko","family":"Nojiri","sequence":"additional","affiliation":[{"name":"Clinical Translational Science, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yoshiteru","family":"Arai","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Faculty of Medicine, Juntendo University, Tokyo 113-8421, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kentaro","family":"Awata","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Faculty of Medicine, Juntendo University, Tokyo 113-8421, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Naho","family":"Ikeda","sequence":"additional","affiliation":[{"name":"Department of Neonatology, Juntendo University Shizuoka Hospital, 1129 Nagaoka, Izunokuni-shi, Shizuoka 410-2295, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Natsuki","family":"Ohkawa","sequence":"additional","affiliation":[{"name":"Department of Neonatology, Juntendo University Shizuoka Hospital, 1129 Nagaoka, Izunokuni-shi, Shizuoka 410-2295, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Naoto","family":"Nishizaki","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Juntendo University Urayasu Hospital, Chiba 279-0021, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiroki","family":"Suganuma","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Faculty of Medicine, Juntendo University, Tokyo 113-8421, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ken","family":"Hisata","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Faculty of Medicine, Juntendo University, Tokyo 113-8421, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Masato","family":"Kantake","sequence":"additional","affiliation":[{"name":"Department of Neonatology, Juntendo University Nerima Hospital, Tokyo 136-0075, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kaoru","family":"Obinata","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Juntendo University Urayasu Hospital, Chiba 279-0021, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Toshiaki","family":"Shimizu","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Faculty of Medicine, Juntendo University, Tokyo 113-8421, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,3,4]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"445","DOI":"10.1542\/peds.2008-0763","article-title":"Mortality rates for extremely low birth weight infants born in Japan in 2005","volume":"123","author":"Itabashi","year":"2009","journal-title":"Pediatrics"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"199","DOI":"10.21037\/tp.2019.07.10","article-title":"The clinical management and outcomes of extremely preterm infants in Japan: Past, present, and future","volume":"8","author":"Isayama","year":"2019","journal-title":"Transl. 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