Table 1 Patient’s demographics and diagnosis stratified by the linear wear rate threshold of 0.1 mm/y

 Number of hips

101

9

92

 Gender (m : w)

55:46

3:6

52:40

 Age at surgery (y)

58.0 (11.4)

63.2 (6.6)

57.4 (11.8)

0.15

 BMI (kg/m²)

26.5 (4.5)

23.7 (2.8)

26.8 (4.5)

0.036*

Diagnosis

 Primary osteoarthritis

54

6

48

 Developmental dysplasia

25

2

23

 Avascular necrosis

7

1

6

 Posttraumatic osteoarthritis

4

0

4

 Rheumatoid arthritis

6

0

6

 Others

5

0

5