Table 1 Patient demographics

Number of patients

148

56

92

Gender (male/female)

51/97

27/29

24/68

Age (years)^a

67.7 ± 10.9

66.2 ± 13.0

68.6 ± 9.3

0.23

Body mass index (kg/m²)^a

27.0 ± 4.3

27.2 ± 4.5

26.8 ± 4.3

0.57

Preoperative clinical scoring

 Harris Hip Score

47.4 ± 18.1

46.4 ± 16.7

48.7 ± 18.6

0.45

 HOOS––pain

35.7 ± 16.9

33.2 ± 16.0

37.3 ± 18.0

0.18

 HOOS––symptom

40.6 ± 17.9

38.0 ± 18.1

42.2 ± 18.3

0.2

 HOOS––ADL

36.7 ± 16.8

34.9 ± 17.3

38.2 ± 17.2

0.29

 HOOS––sport/recreation

20.2 ± 18.9

17.9 ± 16.7

21.5 ± 20.6

0.28

 HOOS––quality of life

27.8 ± 13.6

25.1 ± 11.9

29.1 ± 14.8

0.09

 HOOS––activity 1a

2.7 ± 1.2

2.6 ± 1.0

2.7 ± 1.3

0.81

 HOOS––activity 1b

2.6 ± 1.2

2.8 ± 1.2

2.6 ± 1.2

0.21

 HOOS––activity 2

3.7 ± 2.0

3.5 ± 1.9

3.9 ± 2.0

0.19