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. Author manuscript; available in PMC: 2015 Mar 1.
Published in final edited form as: Ann Rheum Dis. 2013 Jun 6;73(9):1659–1664. doi: 10.1136/annrheumdis-2013-203355

TABLE 2. Effect of prevalent hip and hand OA on risk of knee OA.

INCIDENT KNEE OA
Unadjusted
IR/1,000 py
[99%CI]
Unadjusted
HR [99%CI]
Age and Gender-
adjusted
HR [99%CI]
+ BMI-adjusted
HR [99%CI]
REFERENCE 6.44
[6.38-6.49]
REF REF REF
Previous
Hip OA
N = 1,807
16.09
[15.15-
17.10]
2.49
[2.44-2.54];
p<0.001
1.36
[1.28-1.45];
p<0.001
1.15
[1.08-1.23];
p<0.001
Previous
Hand OA
N = 1,089
16.10
[15.39-
16.85]
2.50
[2.44-2.55];
p<0.001
1.47
[1.40-1.54];
p<0.001
1.20
[1.14-1.26];
p<0.001