Evidence mapPaperPMID 40456878Full record

SynthesisScientific reports2025

Association between attention-deficit/hyperactivity disorders and intestinal disorders: A systematic review and Meta-analysis.

Rita W Y Ng, Zigui Chen, Liuyue Yang, Oscar W H Wong, Agnes S Y Leung, K W Tsui, Natalie M W Kwok, Lesley H Y Tang, Peter M H Cheung, Paul K S Chan and 1 more

Abstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. Trial
  2. Review
  3. Article
  4. 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

11 authors.

Rita W Y NgDepartment of Microbiology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong (SAR), N/A, China.
Zigui ChenDepartment of Microbiology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong (SAR), N/A, China.
Liuyue YangDepartment of Microbiology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong (SAR), N/A, China.
Oscar W H WongDepartment of Psychiatry, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong (SAR), N/A, China.
Agnes S Y LeungDepartment of Paediatrics, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong (SAR), N/A, China.
K W TsuiDepartment of Paediatrics and Adolescent Medicine, Alice Ho Miu Ling Nethersole Hospital, Hospital Authority, Hong Kong (SAR), China.
Natalie M W KwokFaculty of Medicine, The Chinese University of Hong Kong, Sha Tin, Hong Kong (SAR), China.
Lesley H Y TangFaculty of Medicine, The Chinese University of Hong Kong, Sha Tin, Hong Kong (SAR), China.
Peter M H CheungFaculty of Medicine, The Chinese University of Hong Kong, Sha Tin, Hong Kong (SAR), China.
Paul K S ChanDepartment of Microbiology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong (SAR), N/A, China.
Margaret IpDepartment of Microbiology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong (SAR), N/A, China. margaretip@cuhk.edu.hk.

Funding

Hong Kong Special Administrative Region, China CUHK 24115121
6 · The paper itself

Abstract

Patients with attention-deficit hyperactivity disorder (ADHD) reported significantly more constipation and flatulence than healthy controls. An altered gut microbiome can be associated with gastrointestinal symptoms. However, comprehensive information about associated risk of intestinal disorders and ADHD remains limited. A systematic review of the literature was therefore conducted to investigate the association between ADHD and different types of intestinal disorders. A total of 11 studies with 3,851,163 unique individuals, including 175 806 individuals with ADHD and 3 675 357 individuals without ADHD were included. The pooled OR of intestinal disorders for individuals with ADHD was 1.25 (95%CI, 0.75-2.07). A significant positive association was found between ADHD and irritable bowel syndrome (IBS) (OR 1.63 [95% CI 1.45-1.83]). Studies conducted in Eastern Mediterranean Region yielded a summary OR estimate that was higher than summary OR estimates in studies conducted in Region of the Americas, European Region and Western Pacific Region (3.03 [1.53-5.99] vs. 2.20 [1.05-4.63], 1.04 [0.44-2.41], 0.68 [0.25-1.87]), with p value 0.053, indicating a trend towards significance. High heterogeneity was observed. Our study supports association between ADHD and increased risk of IBS. Our study suggests an altered gut microbiome is the potential link that bridges gap between ADHD and intestinal disorder.

Indexed as

Attention Deficit Disorder with HyperactivityIntestinal DiseasesIrritable Bowel SyndromeGastrointestinal MicrobiomeHumansRisk FactorsAttention-deficit hyperactivity disorder (ADHD)Intestinal disordersMeta-analysis

Identifiers

PMID40456878
PMCPMC12130308

What Socratic holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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 Socratic graph.