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Table 2 Study variables associated with the prevalence of total knee joint replacements

From: Incidence and prevalence of total joint replacements due to osteoarthritis in the elderly: risk factors and factors associated with late life prevalence in the AGES-Reykjavik Study

  TKR (n = 315) p value TKR p value
  Multivariate 1 Multivariate 2
Age (per year) 0.99 (0.97–1.01) 0.33 0.98 (0.96–1.01) 0.18
Female sex 1.20 (0.94–1.54) 0.15 1.21 (0.92–1.59) 0.18
BMI (per unit) 1.13 (1.10–1.16) <0.0001 1,13 (1.10–1.16) <0.0001
Finger length ratio (1–3) 1.40 (1.16–1.68) <0.0001 1.40 (1.17–1.69) <0.0001
Hand OA severity (0–4) 1.23 (1.13–1.34) <0.0001 1.22 (1.12–1.33) <0.0001
BMD (per 10 percent of predicted) 1.04 (1.00–1.08) 0.03 1,04 (1.01–1.08) 0.02
Education (1–4)    0.94 (0.82–1.08) 0.42
Smoking history (1–3)    0.90 (0.75–1.09) 0.28
hs-CRP    1.00 (0.98–1.02) 0.97
Cholesterol    0.93 (0.81–1.06) 0.27
Triglycerides    0.81 (0.66–1.01) 0.06
Statin use    0.96 (0.69–1.34) 0.82
AUC (95 % CI): 0.71 (0.67–0.73)   0.71 (0.67–0.73)  
R 2 : Cragg-Uhler (Nagelkerke): 0.08   0.08