ArticleBMJ open2022
Low length/weight growth trajectories of early-term infants during the first year: evidence from a longitudinal study in China.
Article in BMJ open, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed.
- Two distinct growth patterns of preterm infants from birth to 18 months of corrected gestational age: a retrospective cohort study.Translational pediatrics · 2026Article
- Construction and Validation of a PCA-Based Prediction Model for Preterm Infant Stunting Risk: A Retrospective Study.Children (Basel, Switzerland) · 2025Article
- The reference curves of percentile for the length and head circumference of infants aged 0-1 year in Hainan Province, China.Scientific reports · 2024Article
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Authors and funding
12 authors.
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Abstract
objectiveTo identify common length, weight and body mass index (BMI) growth trajectories of term infants during infancy, and to determine their association with early-term infants.
designProspective longitudinal study.
settingWuhan, China. PATIENTS: A total of 4308 term infants (born at 37-41 weeks of gestation) were included. All term infants were single live birth with no defects and birth weight ≥2500 g, and their mothers were permanent residents of Wuhan for more than 2 years. After excluding 887 infants, a total of 3421 term infants (1028 early-term infants born at 37-38 weeks of gestation and 2393 full-term infants born at 39-41 weeks of gestation) entered the statistical analysis stage.
main outcome measuresPatterns of length, weight and BMI growth trajectories by using group-based trajectory modelling.
resultsThree distinct physical growth trajectories were identified as follows: length: low stable (1056, 30.9%), moderate stable (1887, 55.2%) and high increasing (477, 13.9%); weight: low stable (1031, 30.1%), moderate stable (1884, 55.1%) and high increasing (505, 14.8%); BMI: low stable (689, 20.1%), moderate stable (2167, 63.4%) and high increasing (564, 16.5%). Compared with the full-term infants, early-term infants were more likely to remain at low-stable trajectory in length (OR: 1.40; 95% CI: 1.19 to 1.66) and weight (OR:1.29; 95% CI: 1.09 to 1.53). These associations were still statistically significant after adjusting potential confounders and were more evident among girls in the stratified analysis. There was no statistical association between BMI trajectory patterns and gestational age categories.
conclusionOur results suggested the heterogeneity of term infants existed in length, weight and BMI growth trajectories of early childhood. Compared with full-term birth, early-term birth was related to low length and weight trajectories rather than BMI trajectory. Further research is needed to evaluate the duration of these low trajectories and their possible long-term health effects.
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