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From:
Published online Mar 5, 2009. doi: 10.1186/ar2636
Table 4
Relationship between adiposity measures and risk of primary knee and hip replacement
Primary knee replacement (n = 541)Primary hip replacement (n = 468)Heterogeneity of hazard ratios


Hazard ratio (95% confidence interval)P valueHazard ratio (95% confidence interval)P value(P value)
Weight (per 10 kg)1.58 (1.51 to 1.65)<0.0011.22 (1.15 to 1.30)<0.001<0.0001
Body mass index (per 5 kg/m2)1.88 (1.76 to 2.00)<0.0011.26 (1.15 to 1.38)<0.001<0.0001
Waist circumference (per 10 cm)1.62 (1.53 to 1.72)<0.0011.10 (1.01 to 1.19)0.03<0.0001
Waist-to-hip ratio (per 0.1 unit)1.43 (1.29 to 1.58)<0.0011.01 (0.85 to 1.19)0.920.0004
Fat mass (per 10 kg)1.88 (1.76 to 2.00)<0.0011.29 (1.18 to 1.41)<0.001<0.0001
Percentage fat (per 10%)2.84 (2.47 to 3.26)<0.0011.37 (1.19 to 1.57)<0.001<0.0001
All models adjusted for age, country of birth, and highest level of education, stratifying by gender, representing an approximate change of one standard deviation for each of the adiposity measures.
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