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Table 1 Baseline characteristics in the iliopsoas impingement (+IPI) and non-impingement (−IPI) group

From: Risk factors for iliopsoas impingement after total hip arthroplasty using a collared femoral prosthesis

  +IPI group (n = 15) −IPI group (n = 191) P value
Number of patients 15 181  
Gender, no. (%)    0.420
 Female 9 89  
 Male 6 92  
Age (years)    0.453
 Mean (SD) 69.7 (10.1) 67.9 (9.0)  
 Median (range) 68 (55–88) 68 (45–91)  
BMI (Kg/m2)    0.359
 Mean (SD) 24.3 (4.2) 25.3 (19.0)  
 Median (range) 24.5 (16.5–33.1) 25.1 (17.7–32.9)  
Diseases, no. (%)    0.094a
 FNF 5 40  
 ONFH 3 93  
 DDH 6 53  
 OA 1 5  
  1. BMI body mass index, FNF femoral neck fracture, ONFH osteonecrosis of the femoral head, DDH developmental dysplasia of the hip, OA osteoarthritis, SD standard deviation
  2. aFisher exact test