ArticleArchives of gynecology and obstetrics2024
The smaller firstborn: exploring the association of parity and fetal growth.
Article in Archives of gynecology and obstetrics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Fetal Body Composition and Organ Growth in Pregnancies Complicated by First-Trimester Vaginal Bleeding Status: NICHD Fetal 3D Study.American journal of perinatology · 2026Trial
- Maternal oxidative stress biomarkers across pregnancy in relation to fetal growth: evidence from the TIDES cohort.American journal of epidemiology · 2026Article
- Factors affecting the umbilical artery Doppler reference values in the second and third trimesters.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2026Article
- Article
- Maternal parity modifies the association of birthweight polygenic score with fetal growth.Scientific reports · 2025Article
- Fetal Body Composition and Organ Volume Trajectories in Association With Maternal Perceived Stress or Depressive Symptoms in the Fetal 3D Study.Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine · 2025Article
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4 authors.
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Abstract
purposeTo investigate the association of parity with a range of neonatal anthropometric measurements in a cohort of uncomplicated term singleton pregnancies.
methodsRetrospective cohort study of patients with a singleton term birth at a single tertiary center (2014-2020) was carried out. The primary exposure was parity. The following neonatal anthropometric measures were considered: birthweight, head circumference, length, ponderal index, and neonatal body mass index (BMI).
resultsA total of 8134 patients met the study criteria, 1949 (24.0%) of whom were nulliparous. Compared with multiparous patients, infants of nulliparous patients had a lower mean percentile for birthweight (43.1 ± 26.4 vs. 48.3 ± 26.8 percentile, p < 0.001), head circumference (44.3 ± 26.4 vs. 48.1 ± 25.5 percentile, p < 0.001), length (52.6 ± 25.1 vs. 55.5 ± 24.6 percentile, p < 0.001), ponderal index (34.4 ± 24.0 vs. 37.6 ± 24.2 percentile, p < 0.001), and BMI (39.1 ± 27.1 vs. 43.9 ± 27.3 percentile, p < 0.001). In addition, infants of nulliparous patients had higher odds of having a small (< 10th percentile for gestational age) birthweight (aOR 1.32 [95% CI 1.12-1.56]), head circumference (aOR 1.54 [95% CI 1.29-1.84]), length (aOR 1.50 [95% CI 1.16-1.94]), ponderal index (aOR 1.30 [95% CI 1.12-1.51]), and body mass index (aOR 1.42 [95% CI 1.22-1.65]). Most neonatal anthropometric measures increased with parity until a parity of 2, where it seemed to reach a plateau.
conclusionParity has an independent impact on a wide range of neonatal anthropometric measures, suggesting that parity is associated with both fetal skeletal growth and body composition. In addition, the association of parity with fetal growth does not follow a continuous relationship but instead reaches a plateau after the second pregnancy.
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