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ArticleClinical pediatric endocrinology : case reports and clinical investigations : official journal of the Japanese Society for Pediatric Endocrinology2025

Japanese growth charts stratified by birth weight in 500-gram increments: Findings from the Japan Environment and Children's Study.

Takeshi Yamaguchi, Naomi Tamura, Hiroyoshi Iwata, Sachiko Itoh, Mariko Itoh, Maki Tojo, Keitaro Makino, Yasuaki Saijo, Akie Nakamura, Yoshiya Ito and 6 more

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Article in Clinical pediatric endocrinology : case reports and clinical investigations : official journal of the Japanese Society for Pediatric Endocrinology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

16 authors.

Takeshi YamaguchiCenter for Environmental and Health Sciences, Hokkaido University, Sapporo, Japan.
Naomi TamuraCenter for Environmental and Health Sciences, Hokkaido University, Sapporo, Japan.
Hiroyoshi IwataCenter for Environmental and Health Sciences, Hokkaido University, Sapporo, Japan.
Sachiko ItohCenter for Environmental and Health Sciences, Hokkaido University, Sapporo, Japan.
Mariko ItohCenter for Environmental and Health Sciences, Hokkaido University, Sapporo, Japan.
Maki TojoCenter for Environmental and Health Sciences, Hokkaido University, Sapporo, Japan.
Keitaro MakinoCenter for Environmental and Health Sciences, Hokkaido University, Sapporo, Japan.
Yasuaki SaijoDepartment of Social Medicine, Asahikawa Medical University, Asahikawa, Japan.
Akie NakamuraDepartment of Pediatrics, Hokkaido University Graduate School of Medicine, Sapporo, Japan.
Yoshiya ItoFaculty of Nursing, Japanese Red Cross Hokkaido College of Nursing, Kitami, Japan.
Kazutoshi ChoDepartment of Pediatrics, Japan Community Healthcare Organization Hokkaido hospital, Sapporo, Japan.
Akinori MoriichiDivision of Specific Pediatric Chronic Diseases, Research Institute, National Center for Child Health and Development, Tokyo, Japan.
Yumi KonoDepartment of Pediatrics, Jichi Medical University, Tochigi, Japan.
Taro YamauchiCenter for Environmental and Health Sciences, Hokkaido University, Sapporo, Japan.
Reiko KishiCenter for Environmental and Health Sciences, Hokkaido University, Sapporo, Japan.
Japan Environment and Children’s Study Group

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Growth charts are essential tools for monitoring the physical development of children. We analyzed data from a nationwide Japanese birth cohort of 98,987 participants to create eight growth charts stratified by birth weight in 500-gram increments. Infants with birth weight < 2,500 g showed significant improvements in height and weight standard deviation (SD) scores by 4 yr of age. Boys and girls weighing 500-999 g at birth had average length/height SD scores of -6.40 and -8.20, which improved to -1.26 and -1.17 by 4 yr of age, respectively. Conversely, infants with birth weight ≥ 3,500 g showed decreased height and weight SD scores by 4 yr of age. Boys and girls weighing ≥ 4,000 g had average length/height SD scores of 1.87 and 2.10 at birth, which decreased to 0.34 and 0.51 by 4 yr of age, respectively. These findings reveal distinct growth patterns for different birth weight categories, highlighting the impact of birth weight on early childhood growth trajectories. The growth charts developed here serve as a valuable tool for evaluating children born small or large. These charts enable a more accurate monitoring of children's growth and can be useful in both clinical and public health settings.

Indexed as

birth weightbody length/heightbody weightgrowth chartgrowth trajectory in early childhood

Identifiers

PMID41049520
PMCPMC12494411

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.