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In a prospective cohort study, 56 SGA and 68 non-SGA control participants were assessed at 32 years using the performance-based Trail Making Test (TMT) and the self-report questionnaire Behavior Rating Inventory of Executive Function \u2013 Adult Version (BRIEF-A). The SGA group used 1.6 (95% confidence interval [CI] 0.1\u20133.1) to 3.9 (95% CI 1.2\u20136.5) seconds more on TMT conditions 1 and 3, indicating more difficulties with visual scanning and letter sequencing than controls. On BRIEF-A, the SGA group scored 1.5 (95% CI 0.2\u20132.8) points lower on the clinical scale Emotional Control. Correlation coefficients for the association between TMT and BRIEF-A scores ranged from -0.295 (<jats:italic>p<\/jats:italic>\u2009=\u20090.065) to 0.345 (<jats:italic>p<\/jats:italic>\u2009=\u20090.029) in the SGA group. In conclusion, we found that 32-year-old adults born SGA at term showed poorer performance on some executive function tasks than controls. However, they reported similar executive functioning in everyday life, except for emotional control. 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