Predictive model for macrosomia using maternal parameters without sonography information

The Journal of Maternal-fetal & Neonatal Medicine : the Official Journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians
Daisuke ShigemiHideo Yasunaga

Abstract

Objective: We aimed to develop new predictive models for excluding macrosomia using only maternal physical parameters, without sonographic examination. Methods: The present study retrospectively analyzed the medical records of pregnant women who delivered singleton infants at term at one obstetric hospital in an urban area in Japan from May 2005 to April 2017. We performed logistic regression analysis to predict macrosomia and created an integer risk scoring system based on the significant predictors. We also developed an alternative predictive regression model using machine learning with the random forest algorithm. Results: There were 203 cases of macrosomia among 15,263 eligible women. Although our scoring system had low specificity and positive predictive value, the negative predictive value for screening macrosomia was very high (0.996-1.000). The other model, using machine learning with the random forest algorithm to predict macrosomia, showed a negative predictive value of 0.99, which was similar to the results of our scoring system. Conclusions: Our integer scoring system is an easy and useful method for excluding macrosomia among pregnant women without sonographic examination.

References

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Citations

Jun 11, 2021·The Journal of Obstetrics and Gynaecology Research·Louise HarveyEline M van der Beek

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