Cohort study2019Open access

Dietary magnesium intake, serum high sensitivity C-reactive protein and the risk of incident knee osteoarthritis leading to hospitalization-A cohort study of 4,953 Finns

Konstari S, Sares-Jäske L, Heliövaara M, Rissanen H, Knekt P, Arokoski J, Sundvall J, Karppinen J

PloS one · 21 citations

How it was studied

Design
Cohort study (indexed by PubMed)
Studied in
People
Main outcome
Clinical events such as disease or death

Who paid for it

Funding
Independent funding

Based on full-text disclosure statement.

Publication

Published
2019-03-25 · PLoS One · vol. 14 · issue 3 · p. e0214064
Publisher
Public Library of Science
Cited
43 citations · more than 91% of similar papers · 3.2× the field average
Impact
Top 10% most cited in its field
References
51 works
Access
Open access (journal) · CC-BY
Research areas
Magnesium in Health and Disease · Parathyroid Disorders and Treatments · Magnesium Alloys: Properties and Applications
Keywords
Medicine, Hazard ratio, Osteoarthritis, National Health and Nutrition Examination Survey, Internal medicine, Confounding, Cohort, Cohort study, Proportional hazards model, Confidence interval, C-reactive protein, Incidence (geometry), Population, Environmental health, Pathology
MeSH
humans, osteoarthritis, knee, magnesium deficiency, magnesium, c-reactive protein, hospitalization, health surveys, incidence, risk factors, cohort studies, follow-up studies, prospective studies, adult, aged, aged, 80 and over, middle aged, finland, female, male

8 authors

From FI

  • Sanna Konstari · correspondingOulu University Hospital; University of Oulu
  • Laura Sares‐JäskeFinnish Institute for Health and Welfare
  • Markku HeliövaaraFinnish Institute for Health and Welfare
  • Harri A. RissanenFinnish Institute for Health and Welfare
  • Paul KnektFinnish Institute for Health and Welfare
  • Jari P. ArokoskiUniversity of Helsinki; Helsinki University Hospital

Abstract

Objectives

To study whether low dietary magnesium (Mg) intake and serum high sensitivity C-reactive protein (hs-CRP) predict the development of clinical knee osteoarthritis (OA).

Methods

The cohort consisted of 4,953 participants of a national health examination survey who were free of knee and hip OA at baseline. Information on the incidence of knee OA leading to hospitalization was drawn from the National Care Register for Health Care. During the follow-up of 10 years, 123 participants developed incident knee OA. Dietary magnesium intake was assessed on the basis of a food frequency questionnaire from the preceding year. We used Cox's proportional hazards model to estimate the strength of the association between the tertiles of dietary Mg intake and incident knee OA, adjusted for baseline age, gender, energy intake, BMI, history of physical workload, leisure time physical activity, injuries, knee complaints, the use of Mg supplements, and serum hs-CRP levels.

Results

At baseline, dietary Mg intake was inversely associated with serum hs-CRP even after adjustment for all the potential confounding factors. During the follow-up, the adjusted hazard ratios (with their 95% confidence intervals) for incident knee OA in dietary Mg intake tertiles were 1.00, 1.28 (0.78-2.10), and 1.38 (0.73-2.62); the p value for trend was 0.31. Serum hs-CRP level at baseline did not predict incident knee OA.

Conclusions

The results do not support the hypothesis that low dietary Mg intake contributes to the development of clinical knee OA, although Mg intake is inversely associated with serum hs-CRP level.

Abstract via Europe PMC. Copyright remains with the authors or publisher (CC BY).

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