Prevalence of Hip Symptoms and Radiographic and Symptomatic Hip Osteoarthritis in African Americans and Caucasians: The Johnston County Osteoarthritis Project
Journal Article
Jordan, Joanne M.
Helmick, Charles G.
Renner, Jordan B.
Luta, Gheorghe
Dragomir, Anca D.
Woodard, Janice
Fang, Fang
Schwartz, Todd A.
Nelson, Amanda E.
Abbate, Lauren M.
Callahan, Leigh F.
Kalsbeek, William D.
Hochberg, Marc C.
2009
Journal of Rheumatology
36
4
809-15
10.3899/jrheum.080677
PMC2957092
3657
OBJECTIVE: To report contemporary estimates of the prevalence of hip-related osteoarthritis (OA) outcomes in African Americans and Caucasians aged >/= 45 years. METHODS: Weighted prevalence estimates and their corresponding 95% confidence intervals for hip symptoms, radiographic hip OA, symptomatic hip OA, and severe radiographic hip OA were calculated using SUDAAN(R) for age, race, and sex subgroups among 3068 participants (33% African Americans, 38% men) in the baseline examination (1991-97) of The Johnston County Osteoarthritis Project, a population-based study of OA in North Carolina. Radiographic hip OA was defined as Kellgren-Lawrence radiographic grade >/= 2, moderate/severe radiographic hip OA as grades 3 and 4, and symptomatic hip OA as hip symptoms in a hip with radiographic OA. RESULTS: Hip symptoms were present in 36%; 28% had radiographic hip OA; nearly 10% had symptomatic hip OA; and 2.5% had moderate/severe radiographic hip OA. Prevalence of all 4 outcomes was higher in older individuals; most outcomes were higher for women and African Americans. CONCLUSION: African Americans in this population do not have a lower prevalence of hip-related OA outcomes as previous studies suggested. Increasing public and health system awareness of the relatively high prevalence of these outcomes, which can be disabling, may help to decrease their effects and ultimately prevent them.
Life Course Perspectives
Place, Space, and Health
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