Original article
Association of low dietary vitamin K intake with radiographic knee osteoarthritis in the Japanese elderly population: dietary survey in a population-based cohort of the ROAD study

https://doi.org/10.1007/s00776-009-1395-yGet rights and content

Abstract

Background

The present study sought to identify dietary nutrients associated with the prevalence of radiographic knee osteoarthritis (OA) in the Japanese elderly of a population-based cohort of the Research on osteoarthritis Against Disability (ROAD) study.

Methods

From the baseline survey of the ROAD study, 719 participants ≥ 60 years of age (270 men, 449 women) of a rural cohort were analyzed. Dietary nutrient intakes for the previous 1 month were assessed by a self-administered brief diet history questionnaire. The radiographic severity at both knees was determined by the Kellgren/Lawrence (KL) system.

Results

The prevalence of knee OA of KL ≥ 2 was 70.8%. Age, body mass index, and female sex were positively associated with the prevalence. Among the dietary factors, only vitamin K intake was shown to be inversely associated with the prevalence of radiographic knee OA by multivariate logistic regression analysis. The presence of joint space narrowing of the knee was also inversely associated with vitamin K intake. The prevalence of radiographic knee OA for each dietary vitamin K intake quartile decreased with the increased intake.

Conclusions

The present cross-sectional study using a population-based cohort supports the hypothesis that low dietary vitamin K intake is a risk factor for knee OA. Vitamin K may have a protective role against knee OA and might lead to a disease-modifying treatment.

References (30)

  • T.E. McAlindon et al.

    Do antioxidant micronutrients protect against the development and progression of knee osteoarthritis?

    Arthritis Rheum

    (1996)
  • T.E. McAlindon et al.

    Nutritional factors and osteoarthritis: recent developments

    Curr Opin Rheumatol

    (2005)
  • L.G. Ameye et al.

    Osteoarthritis and nutrition: from nutra-ceuticals to functional foods: a systematic review of the scientific evidence

    Arthritis Res Ther

    (2006)
  • T. Neogi et al.

    Low vitamin K status is associated with osteoarthritis in the hand and knee

    Arthritis Rheum

    (2006)
  • D.T. Felson et al.

    Low levels of vitamin D and worsening of knee osteoarthritis: results of two longitudinal studies

    Arthritis Rheum

    (2007)
  • Cited by (47)

    • Vitamin D status is associated with inflammatory biomarkers and clinical symptoms in patients with knee osteoarthritis

      2022, Knee
      Citation Excerpt :

      The knee is the most common site for OA [5]. Risks for knee OA include knee injury, previous knee surgery, lifting, occupational bending, as well as obesity and dietary risk factors [6-8]. The exact pathology of OA remains unclear, however, several studies have found that inflammation is the major mechanism that contributes to the pathogenesis of OA at the early stages [9,10].

    • Racial/Ethnic, Socioeconomic, and Geographic Disparities in the Epidemiology of Knee and Hip Osteoarthritis

      2021, Rheumatic Disease Clinics of North America
      Citation Excerpt :

      There is evidence that the prevalence of knee OA is higher in some Asian regions. Results from a systematic review53 point to overall prevalences of radiographic knee OA ranging from 6.5% in the Netherlands54 to 70.8% in Japan.55 Prevalences of sxKOA across the globe were slightly lower, where the lowest was found in Italy (5.4%)56 and Greece (6.3%) and the highest in Korea (24.2%).57

    View all citing articles on Scopus

    We declare that we have no conflict of interest regarding the present manuscript.

    View full text