Evidence map›Paper›PMID 29065924›Full record

ArticleArthritis research & therapy2017

Dose-response relationship between lower serum magnesium level and higher prevalence of knee chondrocalcinosis.

Chao Zeng, Jie Wei, Robert Terkeltaub, Tuo Yang, Hyon K Choi, Yi-Lun Wang, Dong-Xing Xie, David J Hunter, Yuqing Zhang, Hui Li and 3 more

Abstract read
In one paragraph

Article in Arthritis research & therapy, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 2 pooled it
–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

20 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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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

13 authors.

Chao ZengDepartment of Orthopaedics, Xiangya Hospital, Central South University, #87 Xiangya Road, Changsha, Hunan Province, 410008, China.
Jie WeiHealth Management Center, Xiangya Hospital, Central South University, Changsha, Hunan Province, 410008, China.
Robert TerkeltaubVA San Diego Medical Center, San Diego, CA, 92161, USA.
Tuo YangDepartment of Orthopaedics, Xiangya Hospital, Central South University, #87 Xiangya Road, Changsha, Hunan Province, 410008, China.
Hyon K ChoiDivision of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Boston, MA, 02114, USA.
Yi-Lun WangDepartment of Orthopaedics, Xiangya Hospital, Central South University, #87 Xiangya Road, Changsha, Hunan Province, 410008, China.
Dong-Xing XieDepartment of Orthopaedics, Xiangya Hospital, Central South University, #87 Xiangya Road, Changsha, Hunan Province, 410008, China.
David J HunterRheumatology Department, Royal North Shore Hospital and Institute of Bone and Joint Research, Kolling Institute, University of Sydney, Sydney, NSW, 2065, Australia.
Yuqing ZhangDivision of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Boston, MA, 02114, USA.
Hui LiDepartment of Orthopaedics, Xiangya Hospital, Central South University, #87 Xiangya Road, Changsha, Hunan Province, 410008, China.
Yang CuiInternational Medical Center, Xiangya Hospital, Central South University, Changsha, Hunan Province, 410008, China.
Liang-Jun LiDepartment of Orthopaedics, Xiangya Hospital, Central South University, #87 Xiangya Road, Changsha, Hunan Province, 410008, China.
Guang-Hua LeiDepartment of Orthopaedics, Xiangya Hospital, Central South University, #87 Xiangya Road, Changsha, Hunan Province, 410008, China. lei_guanghua@csu.edu.cn.

Funding

TISSUE ACQUISITION, MORPHOLOGY, AND CELL CULTUREP01AG007996 · NIA · UNIVERSITY OF CALIFORNIA SAN DIEGO · PI SAH, ROBERT L · 1989 to 2016
$26.0M
BLRD VA I01 BX001660NIA NIH HHS P01 AG007996
6 · The paper itself

Abstract

backgroundThe aim was to assess serum magnesium levels in relation to prevalence of knee chondrocalcinosis in two population-based Chinese studies.

methodsData included in this analysis consisted of two population-based cross-sectional studies, i.e., the Xiangya Hospital Health Management Center Study and the Xiangya Osteoarthritis (XO) Study I. A bilateral knee anteroposterior radiograph was obtained from each subject. Radiographic knee chondrocalcinosis was present if there was definite linear cartilage calcification. Serum magnesium concentration was measured using the chemiluminescence method. We examined the relation of serum magnesium levels to prevalence of knee chondrocalcinosis using generalized estimating equations.

resultsThe prevalence of knee chondrocalcinosis was 1.4% in the Xiangya Hospital Health Management Center Study (n = 12,631). Compared with the lowest tertile, the age, sex and body mass index (BMI)-adjusted odds ratios (ORs) of chondrocalcinosis were 0.59 (95% CI 0.40-0.87) and 0.49 (95% CI 0.33-0.72) in the second and the third tertiles of serum magnesium, respectively (P for trend <0.001). The prevalence of knee chondrocalcinosis in the XO Study I (n = 1316) was 4.1%. The age, sex and BMI-adjusted ORs of chondrocalcinosis were 0.67 (95% CI 0.34-1.30) in the second and 0.45 (95% CI 0.21-0.94) in the third tertile of serum magnesium when compared with the lowest tertile (P for trend = 0.030). Similar results were observed in men and women in both studies. Adjusting for additional potential confounders did not change the results materially.

conclusionsSubjects with lower levels of serum magnesium, even within the normal range, had higher prevalence of knee chondrocalcinosis in a dose-response relationship manner, suggesting that magnesium may have a preventive or therapeutic potential for knee chondrocalcinosis.

Indexed as

AdultAgedAsian PeopleChinaChondrocalcinosisCross-Sectional StudiesFemaleHumansKnee JointMagnesiumMaleMiddle AgedOdds RatioOsteoarthritis, KneePrevalenceRadiographyMagnesiumChondrocalcinosisKneeMagnesium

Identifiers

PMID29065924
PMCPMC5655810

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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.