ArticleSaudi medical journal2021
Predictive value and reference ranges of anogenital distance for determining fetal gender in the first trimester: A retrospective cohort study.
Article in Saudi medical journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.
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Who cites it
3 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Effectiveness of prenatal ultrasound in fetal sex identification: a systematic review and meta-analysis.Journal of ultrasound · 2025Pooled it
- Early fetal sex determination: the predictive value of anogenital distance and fetal heart rate in first-trimester ultrasound.American journal of neurodegenerative disease · 2025Article
- The Predictive Accuracy of Anogenital Distance and Genital Tubercle Angle for First-Trimester Fetal Sex Determination.Diagnostics (Basel, Switzerland) · 2024Article
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Authors and funding
6 authors.
Funding
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Abstract
objectivesTo assess the usefulness of sonographically measured anogenital distance (AGD) in predicting fetal gender in Saudi fetuses during the first trimester and to provide normal reference centiles for AGD.
methodsA retrospective cohort study was conducted at King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia between November 2020 and May 2021. The ultrasound scans of 313 singleton pregnancies between 11-13 plus 6 gestational weeks and their gender-at-birth were collected. Anogenital distance was measured from the inferior base of the genital tubercle to the rump. Binominal logistic regression and receiver operating characteristic curves (ROC) evaluated the predictive performance of AGD for determining fetal gender.
resultsThere was a significant difference of approximately 15% in mean AGD between female (5.92 mm [95% CI= 6.70, 6.14]) and male (6.80 mm [95% CI= 6.61,7.00]) fetuses (
conclusionThe first-trimester ultrasound evaluation of AGD was feasible and reliable. It showed a difference between the genders but did not yield high predictive accuracy. Future research should consider racial factors when evaluating AGD.
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