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Table 4 Relationship between adiposity measures and risk of primary knee and hip replacement

From: Relationship between body adiposity measures and risk of primary knee and hip replacement for osteoarthritis: a prospective cohort study

  Primary knee replacement (n = 541) Primary hip replacement (n = 468) Heterogeneity of hazard ratios
  Hazard ratio (95% confidence interval) P value Hazard ratio (95% confidence interval) P value (P value)
Weight (per 10 kg) 1.58 (1.51 to 1.65) <0.001 1.22 (1.15 to 1.30) <0.001 <0.0001
Body mass index (per 5 kg/m2) 1.88 (1.76 to 2.00) <0.001 1.26 (1.15 to 1.38) <0.001 <0.0001
Waist circumference (per 10 cm) 1.62 (1.53 to 1.72) <0.001 1.10 (1.01 to 1.19) 0.03 <0.0001
Waist-to-hip ratio (per 0.1 unit) 1.43 (1.29 to 1.58) <0.001 1.01 (0.85 to 1.19) 0.92 0.0004
Fat mass (per 10 kg) 1.88 (1.76 to 2.00) <0.001 1.29 (1.18 to 1.41) <0.001 <0.0001
Percentage fat (per 10%) 2.84 (2.47 to 3.26) <0.001 1.37 (1.19 to 1.57) <0.001 <0.0001
  1. 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.