Osteoarthritis (OA) is the most common form of arthritis, and disease in the knee or hip are leading causes of disability. Most epidemiologic studies of knee and hip OA have focused on radiographic disease, but symptomatic OA should be a major focus of studies on preventing OA, because symptomatic disease causes disability and has formidable societal and public health impacts. OA is potentially preventable, but only a limited number of mostly nonmodifiable risk factors has been identified, even though modifiable risk factors such as particular activities, muscle weakness, proprioceptive deficits, micronutrient deficiencies and structural factors have been proposed and may affect substantially the risk of disease. Prevention opportunities are most relevant and are most likely to be used by those who already have disease or who are at highest risk of getting it. This proposal introduces four new approaches into the epidemiologic study of knee osteoarthritis: l.a focus on symptomatic disease, 2. a comprehensive evaluation of risk factors including modifiable ones, 3. a focus on those who would really benefit from prevention opportunities, those who already have disease or those who are at high risk of getting it and 4. the incorporation of more comprehensive and reproducible imaging than has previously been used including, state of the art radiographic techniques and MRI. MRI provides rich information on structural factors in which abnormalities may affect the risk of disease. The overall objective of this study is to evaluate longitudinally the effects of three groups of factors: biomechanical factors (squatting, kneeling, stair climbing, wearing high heeled shoes, quadriceps weakness and proprioceptive deficits), bone and structural factors (bone density, bone marrow and meniscal lesions on MRI) and micronutrient deficiencies (vitamin C, E and D) on the occurrence and progression of symptomatic and radiographic knee OA in a population-based sample of men and women aged 50 to 79. Although the focus of this project is knee OA, we also incorporate a study of hip OA. We propose to recruit a community-based sample of 3,000 men and women likely to either have knee OA or be at high risk of OA. High risk groups will include those who are overweight, those with knee symptoms and those with a history of knee injuries or operations. Subjects will be evaluated with symptom questionnaires, radiographs and MRI's and will be followed 36 months for the development or progression of symptomatic or radiographic OA. Analyses will focus on the relation of these important risk factors and OA outcomes. This large, multifaceted study offers to address definitively the relation of potentially important risk factors to the development or progression of a major disabling disease and to provide new insights into disease biology and potential opportunities for disease prevention.

Agency
National Institute of Health (NIH)
Institute
National Institute on Aging (NIA)
Type
Research Project--Cooperative Agreements (U01)
Project #
5U01AG019069-13
Application #
8494483
Study Section
Special Emphasis Panel (ZAG1-ZIJ-8 (M2))
Program Officer
Dutta, Chhanda
Project Start
2001-01-01
Project End
2014-06-30
Budget Start
2013-07-01
Budget End
2014-06-30
Support Year
13
Fiscal Year
2013
Total Cost
$729,702
Indirect Cost
$146,576
Name
University of California San Francisco
Department
Public Health & Prev Medicine
Type
Schools of Medicine
DUNS #
094878337
City
San Francisco
State
CA
Country
United States
Zip Code
94143
Thorlund, Jonas B; Felson, David T; Segal, Neil A et al. (2016) Effect of Knee Extensor Strength on Incident Radiographic and Symptomatic Knee Osteoarthritis in Individuals With Meniscal Pathology: Data From the Multicenter Osteoarthritis Study. Arthritis Care Res (Hoboken) 68:1640-1646
Stefanik, Joshua J; Gross, K Douglas; Guermazi, Ali et al. (2016) Relation of Step Length to Magnetic Resonance Imaging-Detected Structural Damage in the Patellofemoral Joint: The Multicenter Osteoarthritis Study. Arthritis Care Res (Hoboken) 68:776-83
White, D K; Tudor-Locke, C; Zhang, Y et al. (2016) Prospective change in daily walking over 2 years in older adults with or at risk of knee osteoarthritis: the MOST study. Osteoarthritis Cartilage 24:246-53
Nevitt, Michael C; Tolstykh, Irina; Shakoor, Najia et al. (2016) Symptoms of Knee Instability as Risk Factors for Recurrent Falls. Arthritis Care Res (Hoboken) 68:1089-97
Skou, S T; Wise, B L; Lewis, C E et al. (2016) Muscle strength, physical performance and physical activity as predictors of future knee replacement: a prospective cohort study. Osteoarthritis Cartilage 24:1350-6
Yau, Michelle S; Yerges-Armstrong, Laura M; Liu, Youfang et al. (2016) Genome-wide Association Study of Radiographic Knee Osteoarthritis in North American Caucasians. Arthritis Rheumatol :
Stefanik, J J; Guermazi, A; Roemer, F W et al. (2016) Changes in patellofemoral and tibiofemoral joint cartilage damage and bone marrow lesions over 7 years: the Multicenter Osteoarthritis Study. Osteoarthritis Cartilage 24:1160-6
Øiestad, Britt Elin; White, Daniel K; Booton, Ross et al. (2016) Longitudinal Course of Physical Function in People With Symptomatic Knee Osteoarthritis: Data From the Multicenter Osteoarthritis Study and the Osteoarthritis Initiative. Arthritis Care Res (Hoboken) 68:325-31
Riddle, D L; Stratford, P W; Perera, R A (2016) The incident tibiofemoral osteoarthritis with rapid progression phenotype: development and validation of a prognostic prediction rule. Osteoarthritis Cartilage 24:2100-2107
Felson, D T; Niu, J; Neogi, T et al. (2016) Synovitis and the risk of knee osteoarthritis: the MOST Study. Osteoarthritis Cartilage 24:458-64

Showing the most recent 10 out of 124 publications