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Table 3 Prevalence of radiographic hip OA in hip fracture cases and controls

From: The association between hip fracture and hip osteoarthritis: A case-control study

     N Crude prevalence, % (n) Standardized prevalence‡, %
      JS* K & L† MJS* K & L†
Men      
  Cases      
   Fractured side      
    All 146 4.8% (7) 4.8% (7) 4.1% 4.1%
    Intracapsular 82 4.9% (4) 4.9% (4) 6.8% 6.8%
    Extracapsular 64 4.7% (3) 4.7% (3) 1.2% 1.2%
   Contralateral side      
    All 121 6.6% (8) 6.6% (8) 4.3% 4.3%
    Intracapsular 69 4.3% (3) 4.3% (3) 1.2% 1.2%
    Extracapsular 52 9.6% (5) 9.6% (5) 8.1% 8.1%
  Controls 365 11.2% (41) 11.2% (41) 11.4% 11.4%
Women      
  Cases      
   Fractured side      
    All 416 9.6% (40) 8.7% (36) 3.9% 5.5%
    Intracapsular 226 8.0% (18) 5.3% (12) 3.6% 2.7%
    Extracapsular 190 11.6% (22) 12.6% (24) 4.5% 9.4%
   Contralateral side      
    All 336 12.2% (41) 9.5% (32) 9.8% 7.8%
    Intracapsular 189 9.5% (18) 7.9% (15) 7.8% 8.0%
    Extracapsular 147 15.6% (23) 11.6% (17) 12.0% 7.8%
  Controls 438 11.6% (51) 10.5% (46) 13.5% 11.5%
  1. *Osteoarthritis defined as MJS ≤ 2.5 mm. †Osteoarthritis defined as Kellgren and Lawrence grade ≥ 2. ‡ Standardized against the Icelandic population of year 2000.