Evidence map›Paper›PMID 36626464›Full record

ArticleMedicine2022

Association of urinary caffeine and caffeine metabolites with bone mineral density in children and adolescents.

Juan Luo, Mingjiang Liu, Zhong Zheng, Ya Zhang, Ruijie Xie

Open access · goldAbstract read
In one paragraph

Article in Medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
2.1field-weighted citation impact, top 11% of its field
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

9 citing papers in PubMed, 18 citations in OpenAlex.

  1. Microbiology spectrum · 2025
    Article
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  3. Correlation betweenArchives of medical science : AMS · 2025
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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

5 authors at 2 institutions in 3 countries.

Juan LuoDepartment of Operating Room, The Affiliated Nanhua Hospital of South China, Hengyang, China.
Mingjiang LiuDepartment of Hand Surgery, The Affiliated Nanhua Hospital of South China, Hengyang, China.
Zhong ZhengDepartment of General Surgery, Puning People's Hospital, Puning, China.
Ya ZhangDepartment of Gland Surgery, The Affiliated Nanhua Hospital of South China, Hengyang, China.
Ruijie XieDepartment of Hand Surgery, The Affiliated Nanhua Hospital of South China, Hengyang, China.ORCID 0000-0002-1635-962
Research Experiences for Undergraduates · USUniversity of South China · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In epidemiological research, the link between coffee consumption and bone mineral density (BMD) is still debated. Moreover, there hasn't been any research on the relationship between urine caffeine and caffeine metabolites and BMD. This study aimed to investigate if there was a connection between urine caffeine and its metabolites and BMD in people between the ages of 8 and 19. Using data from the National Health and Nutrition Examination Survey 2009 to 2014, multivariate logistic regression models were utilized to investigate the association between urinary caffeine and caffeine metabolites and total BMD. Fitted smoothing curves and generalized additive models were also used. A total of 1235 adolescents were included in this analysis, after controlling for various variables, we found that the association between urinary theophylline and total BMD was negative, whereas the association between urinary paraxanthine, theobromine and caffeine and total BMD was positive. In our study, an inverted U-shaped association between urinary paraxanthine and urinary caffeine was found with BMD in women. In this cross-sectional study, the correlation between urinary caffeine and its metabolites and total BMD differed by sex and race. More studies are needed to confirm the results of this study and to investigate the underlying causes.

Indexed as

Bone DensityCaffeineAdolescentAdultChildCoffeeCross-Sectional StudiesFemaleHumansNutrition SurveysTheophyllineYoung AdultCaffeineCoffeeTheophylline

Identifiers

PMID36626464
PMCPMC9750578
OpenAlexW4315435849

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.