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Table 2 Factors associated with risk of periprosthetic and non-periprosthetic femoral fracture in 20062008 among Medicare recipients who had THR in 1995-1996

From: Prevalence and risk factors for periprosthetic fracture in older recipients of total hip replacement: a cohort study

Factor Predictors of periprosthetic fracture
  OR (95% CI)*
Age (in 2006):  
75-80 1.0
>80 1.26 (0.96, 1.67)
Sex:  
Male 1.13 (0.85, 1.50)
Female 1.0
Hospitalizations 1995-2006:  
0-2 1.0
3-5 0.94 (0.69, 1.29)
>5 1.06 (0.72, 1.57)
Hip or knee replacements after index THR and before 2006:  
Primary total hip replacement  
No 1.0
Yes 1.04 (0.75, 1.42)
Primary total knee replacement  
No 1.0
Yes 1.82 (1.30, 2.55)
Revision hip or knee replacement  
No 1.0
Yes 1.40 (0.95, 2.07)
  1. *Adjusted for factors on table and Medicaid eligibility; race.
  2. not analyzed because there were too few non-whites.