Evidence map›Paper›PMID 41130627›Full record

ArticleBMJ (Clinical research ed.)2025

Breadth versus depth: balancing variables, sample size, and quality in Chinese cohort studies.

Yifei Lin, Lei Chen, Jin Huang, Weimin Li

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in BMJ (Clinical research ed.), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

5 citing papers in PubMed.

  1. Refining insights on type 2 diabetes and aortic valve replacement-reply to Liu et al.Diabetic medicine : a journal of the British Diabetic Association · 2026
    Article
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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

4 authors.

Yifei LinDepartment of Pulmonary and Critical Care Medicine, General Office of Cohort Study Center, State Key Laboratory of Respiratory Health and Multimorbidity, Institute of Respiratory Health and Multimorbidity, West China Hospital, Sichuan University, Chengdu, China.
Lei ChenDepartment of Pulmonary and Critical Care Medicine, General Office of Cohort Study Center, State Key Laboratory of Respiratory Health and Multimorbidity, Institute of Respiratory Health and Multimorbidity, West China Hospital, Sichuan University, Chengdu, China.
Jin HuangDepartment of Urology, Health Data Science Laboratory, Innovation Institute for Integration of Medicine and Engineering, West China Hospital, Sichuan University, Chengdu, China.
Weimin LiDepartment of Pulmonary and Critical Care Medicine, General Office of Cohort Study Center, State Key Laboratory of Respiratory Health and Multimorbidity, Institute of Respiratory Health and Multimorbidity, West China Hospital, Sichuan University, Chengdu, China weimi003@scu.edu.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

PubMed holds no abstract for this paper.

Identifiers

PMID41130627
PMCPMC12542863

What OpenQuestion holds

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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 OpenQuestion graph.