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Table 1 Demographic and clinical characteristics of patients

From: Intermediate-term trends in serum levels of metal ions after hip resurfacing arthroplasty

Characteristic Men Women Total p
Number, n (%) 19 21 40
Age, year, mean (SD) 46.2 (9.5) 52.0 (9.6) 49.2 (9.8) 0.062
BMI, kg/m2, mean (SD) 25.3 (3.7) 24.4 (2.6) 24.9 (3.2) 0.409
Diagnosis, n (%)     0.085
 ONFH 9 (47.4) 6 (28.6) 15 (37.5)  
 OA 2 (10.5) 0 2 (5)  
 DDH 4 (21.1) 10 (47.6) 14 (35)  
 RA 1 (5.3) 3 (14.3) 4 (10)  
 AS 3 (15.8) 0 3 (7.5)  
 Others 0 2 (9.5) 2 (4.0)  
Operated side, n (%)     0.836
 Unilateral 13 (68.4) 15 (71.4) 28 (70)  
 Bilateral 6 (31.6) 6 (28.6) 12 (30)  
Prosthesis company, n (%)     0.464
 Conserve Plus 12 (63.2) 10 (47.6) 22 (55)  
 BHR 2 (10.5) 6 (28.6) 8 (20)  
 BMHR 3 (15.8) 4 (19) 7 (17.5)  
 Depuy ASR-TM 2 (10.5) 1 (4.8) 3 (7.5)  
  1. SD standard deviation, BMI body mass index, ONFH osteonecrosis of the femoral head, OA osteoarthritis, DDH developmental dysplasia of the hip, RA rheumatoid arthritis, AS ankylosing spondylitis