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Associations between dietary intake of vitamin K and changes in symptomatic and structural changes in patients with knee osteoarthritis
Liao, Z and Chang, J and Zhu, Z and Han, W and Meng, T and Zheng, S and Tu, L and Antony, B and Winzenberg, T and Wluka, AE and Cicuttini, F and Ding, C, Associations between dietary intake of vitamin K and changes in symptomatic and structural changes in patients with knee osteoarthritis, Arthritis Care & Research pp. 1-8. ISSN 2151-464X (2022) [Refereed Article]
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Objective: To investigate associations of dietary vitamin K intake with changes in knee symptoms and structures in patients with knee osteoarthritis (OA).
Methods: Participants with symptomatic knee OA were enrolled (n = 259) and followed up for 2 years (n = 212). Baseline dietary vitamin K intake was calculated from a validated food frequency questionnaire. Knee symptoms were assessed by using the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) scores. Knee cartilage defects, bone marrow lesions, and effusion-synovitis volume were measured from magnetic resonance imaging (MRI) scans. Univariable and multivariable linear regressions were used for analyses.
Results: A higher vitamin K intake quartile was significantly associated with a greater decrease in the total WOMAC score and dysfunction score over 24 months. The subgroup analyses showed in patients with severe baseline visual analog scale (VAS) pain that a higher vitamin K intake quartile was associated with more improvement in all WOMAC scores. There were no overall significant associations between vitamin K intake and changes in MRI features. In subgroup analysis, vitamin K intake was negatively associated with changes in tibiofemoral, patellar, and total cartilage defects in participants with a severe baseline radiographic grade and was negatively associated with change in total and patellar cartilage defects in participants with severe baseline VAS pain and in female patients.
Conclusion: The association of higher vitamin K intake with decreased knee symptoms over 24 months in patients with knee OA suggests that clinical trials examining the effect of vitamin K supplementation for knee OA symptoms are warranted. Whether there is an effect on knee structure is unclear.
|Item Type:||Refereed Article|
|Keywords:||osteoarthritis, knee, vitamin K|
|Research Division:||Biomedical and Clinical Sciences|
|Research Group:||Clinical sciences|
|Research Field:||Rheumatology and arthritis|
|Objective Group:||Specific population health (excl. Indigenous health)|
|Objective Field:||Health related to ageing|
|UTAS Author:||Antony, B (Dr Benny Eathakkattu Antony)|
|UTAS Author:||Winzenberg, T (Professor Tania Winzenberg)|
|UTAS Author:||Ding, C (Professor Chang-Hai Ding)|
|Web of Science® Times Cited:||3|
|Deposited By:||Menzies Institute for Medical Research|
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