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OBJECTIVE: To examine 11 candidate genes as susceptibility loci for osteoarthritis (OA). METHODS: A total of 481 families have been ascertained in which at least two siblings have had joint replacement surgery of the hip, or knee, or hip and knee for idiopathic OA. Each candidate gene was targeted using one or more intragenic or closely linked microsatellite marker. The linkage data were analysed unstratified and following stratification by sex and by joint replaced (hip or knee). RESULTS: The analyses revealed suggestive linkage of the type IX collagen gene COL9A1 (6q12-q13) to a subset of 132 families that contained affected females who were concordant for hip OA (female-hip) with a P-value of 0.00053 and logarithm of the odds (LOD) score of 2.33 [corrected P-value of 0. 0016, corrected LOD score of 1.85]. CONCLUSIONS: COL9A1 may therefore be a susceptibility locus for female hip OA. In addition, there was weak evidence of linkage to HLA/COL11A2 (6p21.3) in female hip OA with a corrected P-value of 0.016.

Original publication




Journal article


Rheumatology (Oxford)

Publication Date





299 - 306


Arthroplasty, Replacement, Chromosome Mapping, Collagen, DNA, Female, Genetic Linkage, Genetic Markers, Genetic Predisposition to Disease, Humans, Lod Score, Male, Microsatellite Repeats, Osteoarthritis, Hip, Osteoarthritis, Knee, Polymerase Chain Reaction