Table 1 Subjects’ demographic data

No. of hips/patients

149 hips (142)

105 hips (102)

Sex, male/female

26/116

19/83

Age (years)^a

68.9 ± 9.8 (50–92)

69.2 ± 9.7 (50–92)

Height (cm)^a

153.0 ± 7.7 (131–180)

153.0 ± 8.1 (131–180)

Weight (kg)^a

56.3 ± 11.6 (33–102)

55.3 ± 11.1 (33–84)

Body mass index (kg/m²)^a

23.9 ± 4.3 (14.7–40.2)

23.5 ± 4.1 (14.7–38.3)

 Osteoarthritis (OA)

108

79

 Osteonecrosis of the femoral head

15

8

 Rheumatoid arthritis

9

6

 Femoral neck fracture

17

12

 grade 1

13

8

 grade 2

56

39

 grade 3

60

43

 grade 4

20

15