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Differences in multijoint radiographic osteoarthritis phenotypes among African Americans and Caucasians: the Johnston County Osteoarthritis project.

Publication ,  Journal Article
Nelson, AE; Renner, JB; Schwartz, TA; Kraus, VB; Helmick, CG; Jordan, JM
Published in: Arthritis Rheum
December 2011

OBJECTIVE: To define and contrast multiple joint radiographic osteoarthritis (OA) phenotypes describing hand and whole-body radiographic OA among African Americans and Caucasians. METHODS: We conducted a cross-sectional analysis in the Johnston County Osteoarthritis Project, using radiographic data for the hands, tibiofemoral (TF) joints, patellofemoral joints, hips, and lumbosacral (LS) spine. Radiographs were read for OA by a single radiologist using standard atlases. Fisher's exact test, with correction for multiple comparisons, was used to compare phenotype frequencies by race and sex. Logistic regression was used to provide odds ratios, which were adjusted for sex, age, and body mass index (BMI). RESULTS: Sixteen mutually exclusive hand (n = 2,083) and 32 whole-body (n = 1,419) radiographic OA phenotypes were identified. We found that in comparison to Caucasians, African Americans had significantly less frequent radiographic OA of the distal interphalangeal joints, both in isolation and in combination with other hand joint sites, but had comparable frequencies of radiographic OA for other hand joint sites. Moreover, African Americans had less frequent radiographic OA of the hand, both in isolation and in combination with other joint sites, as compared to Caucasians. In contrast, African Americans had more than twice the odds of isolated OA of the TF joint and 77% higher odds of radiographic OA of the TF joint and LS spine together as compared to Caucasians. CONCLUSION: Even after adjustment for sex, age, and BMI, African Americans were less likely than Caucasians to have hand radiographic OA phenotypes, but more likely to have knee radiographic OA phenotypes involving the TF joint. African Americans may have a higher burden of multiple large-joint OA involvement not captured by most definitions of "generalized OA."

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Published In

Arthritis Rheum

DOI

EISSN

1529-0131

Publication Date

December 2011

Volume

63

Issue

12

Start / End Page

3843 / 3852

Location

United States

Related Subject Headings

  • White People
  • Risk Factors
  • Radiography
  • Prevalence
  • Phenotype
  • Osteoarthritis
  • North Carolina
  • Middle Aged
  • Male
  • Lumbosacral Region
 

Citation

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ICMJE
MLA
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Nelson, A. E., Renner, J. B., Schwartz, T. A., Kraus, V. B., Helmick, C. G., & Jordan, J. M. (2011). Differences in multijoint radiographic osteoarthritis phenotypes among African Americans and Caucasians: the Johnston County Osteoarthritis project. Arthritis Rheum, 63(12), 3843–3852. https://doi.org/10.1002/art.30610
Nelson, Amanda E., Jordan B. Renner, Todd A. Schwartz, Virginia B. Kraus, Charles G. Helmick, and Joanne M. Jordan. “Differences in multijoint radiographic osteoarthritis phenotypes among African Americans and Caucasians: the Johnston County Osteoarthritis project.Arthritis Rheum 63, no. 12 (December 2011): 3843–52. https://doi.org/10.1002/art.30610.
Nelson AE, Renner JB, Schwartz TA, Kraus VB, Helmick CG, Jordan JM. Differences in multijoint radiographic osteoarthritis phenotypes among African Americans and Caucasians: the Johnston County Osteoarthritis project. Arthritis Rheum. 2011 Dec;63(12):3843–52.
Nelson, Amanda E., et al. “Differences in multijoint radiographic osteoarthritis phenotypes among African Americans and Caucasians: the Johnston County Osteoarthritis project.Arthritis Rheum, vol. 63, no. 12, Dec. 2011, pp. 3843–52. Pubmed, doi:10.1002/art.30610.
Nelson AE, Renner JB, Schwartz TA, Kraus VB, Helmick CG, Jordan JM. Differences in multijoint radiographic osteoarthritis phenotypes among African Americans and Caucasians: the Johnston County Osteoarthritis project. Arthritis Rheum. 2011 Dec;63(12):3843–3852.
Journal cover image

Published In

Arthritis Rheum

DOI

EISSN

1529-0131

Publication Date

December 2011

Volume

63

Issue

12

Start / End Page

3843 / 3852

Location

United States

Related Subject Headings

  • White People
  • Risk Factors
  • Radiography
  • Prevalence
  • Phenotype
  • Osteoarthritis
  • North Carolina
  • Middle Aged
  • Male
  • Lumbosacral Region