ArticleEuropean journal of clinical nutrition2026
Breastfeeding and children's sleep duration at 1 year of age: A nationwide birth cohort - The Japan Environment and Children's Study.
Article in European journal of clinical nutrition, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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.
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.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
Abstract
backgroundBreastfeeding plays a vital role in preventing childhood infections and enhancing many aspects of long-term health. In this study, we investigated the link between feeding and sleep duration and considered the underlying mechanism of the observed effects, particularly the role of nutrients in breast milk and formula as well as that of the brain-gut axis. Few studies have examined the relationship between breastfeeding and infant sleep, and thus there is a need for a prospective study involving a large population. SUBJECTS: This study analyzed data on 82,918 mother-infant pairs from the Japan Environment and Children's Study, a nationwide birth cohort study. We examined the association of breastfeeding pattern over the first 6 months of life by comparing sleep duration at 1 year of age between babies exclusively formula-fed for 6 months and those breastfed for <6 months, those breastfed for 6 months with formula, and exclusively breastfed for 6 months.
resultsThe adjusted odds ratio (95% confidence interval) for short sleep duration (<11 h/day) at 1 year of age was 0.84 (0.73-0.97) for breastfed for <6 months, 0.79 (0.69-0.91) for breastfed for 6 months with formula, and 0.77 (0.67-0.89) for exclusively breastfed for 6 months compared with exclusively formula-fed for 6 months (Formula alone).
conclusionsBreastfeeding during the first 6 months of life was associated with a decreased risk of short sleep duration in 1-year-old infants.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.