Evidence map›Paper›PMID 40537857›Full record

ArticleJournal of health, population, and nutrition2025

Age-specific serum calcium levels in healthy individuals from the Xing'an League: a descriptive study.

Haiyan Hu, Wulan Wang, Zenan Chang, Siyu Wang, Yulong Zhang, Lili Zou, Wanying Song, Jing Zhang

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PubMed Full text at PMC Publisher
In one paragraph

Article in Journal of health, population, and nutrition, 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

8 authors.

Haiyan Hu *The Clinical Laboratory Department of the Xing 'an League People's Hospital of Inner Mongolia Autonomous Region, No. 66 Hanshan West Street, Ulanhot City, Xing'an League, 137400, Inner Mongolia, China.
Wulan Wang *The Clinical Laboratory Department of the Xing 'an League People's Hospital of Inner Mongolia Autonomous Region, No. 66 Hanshan West Street, Ulanhot City, Xing'an League, 137400, Inner Mongolia, China.
Zenan ChangThe Clinical Laboratory Department of the Xing 'an League People's Hospital of Inner Mongolia Autonomous Region, No. 66 Hanshan West Street, Ulanhot City, Xing'an League, 137400, Inner Mongolia, China.
Siyu WangThe Clinical Laboratory Department of the Xing 'an League People's Hospital of Inner Mongolia Autonomous Region, No. 66 Hanshan West Street, Ulanhot City, Xing'an League, 137400, Inner Mongolia, China.
Yulong ZhangThe Clinical Laboratory Department of the Xing 'an League People's Hospital of Inner Mongolia Autonomous Region, No. 66 Hanshan West Street, Ulanhot City, Xing'an League, 137400, Inner Mongolia, China.
Lili ZouThe Clinical Laboratory Department of the Xing 'an League People's Hospital of Inner Mongolia Autonomous Region, No. 66 Hanshan West Street, Ulanhot City, Xing'an League, 137400, Inner Mongolia, China.
Wanying SongThe Clinical Laboratory Department of the Xing 'an League People's Hospital of Inner Mongolia Autonomous Region, No. 66 Hanshan West Street, Ulanhot City, Xing'an League, 137400, Inner Mongolia, China.
Jing ZhangThe Clinical Laboratory Department of the Xing 'an League People's Hospital of Inner Mongolia Autonomous Region, No. 66 Hanshan West Street, Ulanhot City, Xing'an League, 137400, Inner Mongolia, China. zhangjing_q@126.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo determine the age-specific distribution of serum calcium levels in the Xing'an League population and assess the applicability of current national standards.

methodsData were collected from 3000 healthy individuals across different age groups in the Xing'an League, stratified by sex and age. Serum calcium levels were measured, and statistical methods were used to analyse sex- and age-related differences. The relevance of the current Chinese Health Industry Standard reference intervals for serum calcium was evaluated, and age-related trends were assessed.

resultsSignificant differences in serum calcium levels were found between sexes and across age groups. The current national reference intervals did not adequately capture the age- and region-specific characteristics of serum calcium levels in the Xing'an League population, highlighting the need for localized evaluation criteria.

conclusionThe study demonstrates the impact of sex and age on serum calcium levels and emphasises the importance of recognising regional variations. The findings provide a scientific basis for enhancing disease prevention and developing personalised treatment strategies to address regional disparities in clinical practice.

Indexed as

CalciumAdolescentAdultAgedAged, 80 and overAge FactorsChildChild, PreschoolChinaFemaleHumansInfantMaleMiddle AgedReference ValuesSex FactorsCalciumCalcium metabolismLaboratory reference valuesPopulation-based studyRegional health referenceSerum biochemistry

Identifiers

PMID40537857
PMCPMC12178044

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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.