{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,12]],"date-time":"2026-03-12T00:38:56Z","timestamp":1773275936306,"version":"3.50.1"},"reference-count":40,"publisher":"Cambridge University Press (CUP)","issue":"2","license":[{"start":{"date-parts":[[2009,7,17]],"date-time":"2009-07-17T00:00:00Z","timestamp":1247788800000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Public Health Nutr."],"published-print":{"date-parts":[[2010,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec id=\"S1368980009005874_abs1\" sec-type=\"general\"><jats:title>Objective<\/jats:title><jats:p>To describe the association between duration of exclusive breast-feeding (EBF), weight gain in infancy and childhood BMI in two populations with a long duration of EBF.<\/jats:p><\/jats:sec><jats:sec id=\"S1368980009005874_abs2\" sec-type=\"general\"><jats:title>Design<\/jats:title><jats:p>Cohort study with follow-up in childhood. Breast-feeding status was reported monthly during infancy. Weight and length were measured at birth, 2, 6 and 12 months of age, as well as in childhood at 6 or 10 years of age.<\/jats:p><\/jats:sec><jats:sec id=\"S1368980009005874_abs3\" sec-type=\"general\"><jats:title>Setting<\/jats:title><jats:p>Iceland and Denmark.<\/jats:p><\/jats:sec><jats:sec id=\"S1368980009005874_abs4\" sec-type=\"subjects\"><jats:title>Subjects<\/jats:title><jats:p>Randomly selected healthy newborns from Denmark (<jats:italic>n<\/jats:italic>85) and Iceland (<jats:italic>n<\/jats:italic>100).<\/jats:p><\/jats:sec><jats:sec id=\"S1368980009005874_abs5\" sec-type=\"general\"><jats:title>Results<\/jats:title><jats:p>Infants exclusively breast-fed for \u22642 months gained 348 (95% CI 69, 626) g more weight from 2 to 6 months than infants exclusively breast-fed for 3\u20134 months (<jats:italic>P<\/jats:italic>= 0\u00b7009). Weight gain from 6 to 12 months was found to be greater among infants exclusively breast-fed for \u22642 months compared with those exclusively breast-fed for \u22655 months (<jats:italic>P<\/jats:italic>= 0\u00b7008). A greater weight change, in terms of<jats:italic>Z<\/jats:italic>-score, between the ages of 2 and 6 months was associated with higher<jats:italic>Z<\/jats:italic>-score of childhood BMI, adjusted for birth weight, country and duration of EBF (<jats:italic>B<\/jats:italic>= 0\u00b749,<jats:sc>se<\/jats:sc>= 0\u00b711,<jats:italic>P<\/jats:italic>&lt; 0\u00b7001, adj.<jats:italic>R<\/jats:italic><jats:sup>2<\/jats:sup>= 0\u00b715). However, the association was much stronger in the Icelandic cohort than the Danish one.<\/jats:p><\/jats:sec><jats:sec id=\"S1368980009005874_abs6\" sec-type=\"conclusion\"><jats:title>Conclusions<\/jats:title><jats:p>Although duration of EBF was not associated with childhood BMI in the present study it may modulate growth rate in infancy, which is related to childhood BMI. However, other factors determinative for infant growth also need to be considered when assessing the relationship of early growth and nutrition to childhood overweight, as traditions in complementary food might differ between populations.<\/jats:p><\/jats:sec>","DOI":"10.1017\/s1368980009005874","type":"journal-article","created":{"date-parts":[[2009,7,17]],"date-time":"2009-07-17T09:19:43Z","timestamp":1247822383000},"page":"201-207","source":"Crossref","is-referenced-by-count":31,"title":["Infant weight gain, duration of exclusive breast-feeding and childhood BMI \u2013 two similar follow-up cohorts"],"prefix":"10.1017","volume":"13","author":[{"given":"Ingibjorg","family":"Gunnarsdottir","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lene","family":"Schack-Nielsen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kim 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