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Some research suggests excess adiposity origins may begin in fetal life, but unknown is whether this applies to infants born preterm.<\/jats:p><\/jats:sec><jats:sec><jats:title>Objective<\/jats:title><jats:p>The objective of the study was to assess the association between small for gestational age (SGA) birth and later adiposity and height among those born preterm.<\/jats:p><\/jats:sec><jats:sec><jats:title>Data sources<\/jats:title><jats:p>MEDLINE, EMBASE and CINAHL until October 2022.<\/jats:p><\/jats:sec><jats:sec><jats:title>Study selection and data extraction<\/jats:title><jats:p>Studies were included if they reported anthropometric (adiposity measures and height) outcomes for participants born preterm with SGA versus non\u2010SGA. Screening, data extraction and risks of bias assessments were conducted in duplicate by two reviewers.<\/jats:p><\/jats:sec><jats:sec><jats:title>Synthesis<\/jats:title><jats:p>We meta\u2010analysed across studies using random\u2010effects models and explored potential heterogeneity sources.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Thirty\u2010nine studies met the inclusion criteria. In later life, preterm SGA infants had a lower body mass index (\u22120.66\u2009kg\/m<jats:sup>2<\/jats:sup>, 95% CI \u22120.79, \u22120.53; 32 studies, <jats:italic>I<\/jats:italic><jats:sup>2<\/jats:sup>\u2009=\u200916.7, <jats:italic>n<\/jats:italic>\u2009=\u200930,346), waist circumference (\u22121.20\u2009cm, 95% CI \u22122.17, \u22120.23; 13 studies, <jats:italic>I<\/jats:italic><jats:sup>2<\/jats:sup>\u2009=\u200919.4, <jats:italic>n<\/jats:italic>\u2009=\u20092061), lean mass (\u22122.62\u2009kg, 95% CI \u22123.45, 1.80; 7 studies, <jats:italic>I<\/jats:italic><jats:sup>2<\/jats:sup>\u2009=\u20090, <jats:italic>n<\/jats:italic>\u2009=\u2009205) and height (\u22123.85\u2009cm, 95% CI \u22124.73, \u22122.96; 26 studies, <jats:italic>I<\/jats:italic><jats:sup>2<\/jats:sup>\u2009=\u200952.6, <jats:italic>n<\/jats:italic>\u2009=\u20094174) compared with those preterm infants born non\u2010SGA. There were no differences between preterm SGA and preterm non\u2010SGA groups in waist\/hip ratio, body fat, body fat per cent, truncal fat per cent, fat mass index or lean mass index, although power was limited for some analyses. Studies were rated at high risk of bias due to potential residual confounding and low risk of bias in other domains.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Compared to their preterm non\u2010SGA peers, preterm infants born SGA have lower BMI, waist circumference, lean body mass and height in later life. No differences in adiposity were observed between SGA preterm infants and non\u2010SGA preterm infants.<\/jats:p><\/jats:sec>","DOI":"10.1111\/ppe.13002","type":"journal-article","created":{"date-parts":[[2023,8,15]],"date-time":"2023-08-15T04:44:45Z","timestamp":1692074685000},"page":"652-668","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":20,"title":["Small for gestational age preterm infants and later adiposity and height: A systematic review and meta\u2010analysis"],"prefix":"10.1111","volume":"37","author":[{"given":"Seham","family":"Elmrayed","sequence":"first","affiliation":[{"name":"Community Health Sciences, Cumming School of Medicine University of Calgary  Calgary Alberta Canada"},{"name":"Alberta Children's Hospital Research Institute, Cumming School of Medicine University of Calgary  Calgary Alberta Canada"},{"name":"O'Brien Institute for Public Health, Cumming School of Medicine University of Calgary  Calgary 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