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Mothers who had a singleton pregnancy, delivered a term neonate, and had an ultrasonography within 30\u2009+\u20090 to 32\u2009+\u20096\u2009weeks of gestation were included. Term SGA was defined with customized population percentiles. Prediction models were constructed with backward selection logistic regression in a four\u2010step approach, where model 1 contained fetal biometrics only, models 2 and 3 included maternal features and a time factor (weeks between ultrasonography and delivery), respectively; and model 4 contained all features mentioned. The prediction performance of individual models was evaluated based on area under the curve (AUC) and a calibration test was performed.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The prevalence of SGA in the study population of 21\u2009346 women was 11.5%. With a complete\u2010case analysis approach, data of 19\u2009954 women were used for model construction and validation. The AUC of the four models were 0.781, 0.793, 0.823, and 0.834, respectively, and all were well\u2010calibrated. Model 3 consisted of fetal biometrics and corrected for time to delivery was chosen as the final model to build risk prediction graphs for clinical use.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>A prediction model derived from fetal biometrics in early third trimester is satisfactory to predict SGA.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ijgo.15268","type":"journal-article","created":{"date-parts":[[2023,12,21]],"date-time":"2023-12-21T07:49:20Z","timestamp":1703144960000},"page":"1104-1113","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["How to enhance the applicability of a risk prediction model for term small\u2010for\u2010gestational\u2010age neonates in clinical settings?"],"prefix":"10.1002","volume":"165","author":[{"given":"Shao\u2010Min","family":"Kong","sequence":"first","affiliation":[{"name":"Division of Birth Cohort Study, Guangzhou Women and Children's Medical Center 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