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. 2000 Nov 11;321(7270):1179-83.
doi: 10.1136/bmj.321.7270.1179.

Assessment of a genetic contribution to osteoarthritis of the hip: sibling study

P Lanyon  1 , K Muir, S Doherty, M Doherty
Affiliations

Assessment of a genetic contribution to osteoarthritis of the hip: sibling study

P Lanyon et al. BMJ. .

Abstract

Objectives: To study the influence of genetics on the development of hip osteoarthritis as determined by structural change on plain radiographs.

Design: Sibling study.

Setting: Nottinghamshire, England.

Participants: 392 index participants with hip osteoarthritis of sufficient severity to warrant total hip replacement, 604 siblings of the index participants, and 1718 participants who had undergone intravenous urography.

Main outcome measure: Odds ratios for hip osteoarthritis in siblings.

Results: The age adjusted odds ratios in siblings were 4.9 (95% confidence interval, 3.9 to 6.4) for probable hip osteoarthritis and 6.4 (4.5 to 9.1) for definite hip osteoarthritis. These values were not significantly altered by adjusting for other risk factors.

Conclusion: Siblings have a high risk of hip osteoarthritis as shown by structural changes on plain radiographs. One explanation is that hip osteoarthritis is under strong genetic influence.

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Figures

Figure 1
Figure 1
Recruitment of participants
Figure 2
Figure 2
Prevalence of hip osteoarthritis in siblings and urography participants
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