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Journal of Orthopaedics and Traumatology

Official Journal of the Italian Society of Orthopaedics and Traumatology

Table 5 Results of the SF-36 questionnaire

From: Effectiveness of psychological support in patients undergoing primary total hip or knee arthroplasty: a controlled cohort study

Scale

Population (“pop”)

Pre-operative

45 days

No. of patients

EXP

CTR

p value

No. of patients

EXP

CTR

p value

Sub-scales

         

Physical functioning

Joint pop

94 vs 95

45.5 ± 27.5

36.6 ± 21.3

0.0059*

94 vs 95

65.0 ± 21.2

48.2 ± 24.7

<0.0001*

Hip pop

61 vs 63

48.2 ± 26.8

36.9 ± 21.7

0.0111*

61 vs 63

68.4 ± 20.5

49.7 ± 25.0

<0.0001*

Knee pop

33 vs 32

40.5 ± 28.3

36.1 ± 20.9

0.4837

33 vs 32

58.6 ± 21.4

45.2 ± 24.2

0.0203*

Role-physical

Joint pop

94 vs 95

22.6 ± 30.2

13.9 ± 28.4

0.0439*

94 vs 95

18.6 ± 34.6

9.5 ± 23.1

0.0343*

Hip pop

61 vs 63

23.0 ± 30.0

11.9 ± 24.9

0.0281*

61 vs 63

19.7 ± 36.0

9.1 ± 23.5

0.0568

Knee pop

33 vs 32

22.0 ± 31.1

18.0 ± 34.3

0.6239

33 vs 32

16.7 ± 32.3

10.2 ± 22.8

0.3523

Bodily pain

Joint pop

94 vs 95

40.1 ± 19.3

30.5 ± 18.3

0.0005*

94 vs 95

70.5 ± 23.6

58.6 ± 25.6

0.0011*

Hip pop

61 vs 63

43.3 ± 21.2

30.5 ± 19.1

0.0006*

61 vs 63

77.0 ± 21.2

63.0 ± 24.8

0.001*

Knee pop

33 vs 32

34.2 ± 13.7

30.4 ± 17.0

0.3283

33 vs 32

58.5 ± 23.6

49.9 ± 25.3

0.1588

General health

Joint pop

94 vs 95

66.8 ± 18.0

57.4 ± 20.1

0.0008*

94 vs 95

79.4 ± 19.0

66.0 ± 22.4

<0.0001*

Hip pop

61 vs 63

69.8 ± 16.4

56.0 ± 22.1

0.0001*

61 vs 63

80.7 ± 19.9

66.1 ± 24.0

0.0003*

Knee pop

33 vs 32

61.4 ± 19.7

60.2 ± 15.3

0.7787

33 vs 32

77.1 ± 17.2

65.8 ± 18.9

0.0142*

Vitality

Joint pop

94 vs 95

66.8 ± 18.0

41.1 ± 19.8

0.0001*

94 vs 95

71.9 ± 19.9

37.3 ± 22.6

<0.0001*

Hip pop

61 vs 63

53.4 ± 16.1

38.6 ± 21.0

<0.0001*

61 vs 63

74.8 ± 18.0

37.9 ± 23.6

<0.0001*

Knee pop

33 vs 32

50.3 ± 23.5

46.1 ± 16.3

0.4030

33 vs 32

66.4 ± 22.2

36.3 ± 20.8

<0.0001*

Social functioning

Joint pop

94 vs 95

63.6 ± 23.9

53.2 ± 27.9

0.0065*

94 vs 95

77.5 ± 23.2

45.3 ± 26.9

<0.0001*

Hip pop

61 vs 63

64.5 ± 23.4

49.4 ± 28.3

0.0015*

61 vs 63

80.1 ± 21.3

45.9 ± 29.1

<0.0001*

Knee pop

33 vs 32

61.7 ± 25.2

60.5 ± 25.8

0.8507

33 vs 32

72.7 ± 25.6

44.1 ± 22.2

<0.0001*

Role-emotional

Joint pop

94 vs 95

48.6 ± 39.9

35.8 ± 38.4

0.0258*

94 vs 95

79.8 ± 33.6

28.4 ± 35.7

<0.0001*

Hip pop

61 vs 63

50.8 ± 41.1

33.3 ± 37.4

0.0147*

61 vs 63

84.7 ± 29.5

29.1 ± 37.1

<0.0001*

Knee pop

33 vs 32

44.4 ± 37.9

40.6 ± 40.4

0.6955

33 vs 32

70.7 ± 38.9

27.1 ± 33.3

<0.0001*

Mental health

Joint pop

94 vs 95

67.1 ± 19.4

54.3 ± 22.6

<0.0001*

94 vs 95

82.3 ± 20.4

46.0 ± 26.9

<0.0001*

Hip pop

61 vs 63

67.9 ± 18.5

51.0 ± 22.4

<0.0001*

61 vs 63

83.3 ± 19.4

47.7 ± 28.4

<0.0001*

Knee pop

33 vs 32

65.7 ± 21.2

60.8 ± 21.8

0.3568

33 vs 32

80.6 ± 22.3

42.8 ± 23.9

<0.0001*

Physical component and mental component summaries

         

Physical component summary

Joint pop

94 vs 95

33.8 ± 9.3

31.3 ± 7.4

0.0466*

94 vs 95

39.2 ± 8.4

39.2 ± 7.8

0.9665

Hip pop

61 vs 63

35.1 ± 9.1

31.5 ± 8.1

0.0192*

61 vs 63

40.5 ± 8.9

39.8 ± 8.0

0.6368

Knee pop

33 vs 32

31.2 ± 9.4

31.0 ± 5.8

0.9075

33 vs 32

36.8 ± 6.9

37.9 ± 7.5

0.5397

Mental component summary

Joint pop

94 vs 95

47.8 ± 11.3

41.8 ± 12.2

0.0005*

94 vs 95

56.7 ± 11.6

35.0 ± 13.0

<0.0001*

Hip pop

61 vs 63

48.1 ± 11.1

39.9 ± 11.9

0.0001*

61 vs 63

57.6 ± 10.6

35.4 ± 14.1

<0.0001*

Knee pop

33 vs 32

47.4 ± 11.7

45.5 ± 12.0

0.5291

33 vs 32

55.0 ± 13.3

34.4 ± 10.9

<0.0001*

Scale

Population (“pop”)

4 months

ANOVA

No. of patients

EXP

CTR

p value

No. of patients

Main effect of treatment

Main effect of follow-up

Interaction between treatment allocation and follow-up

Sub-scales

         

Physical functioning

Joint pop

93 vs 94

86.6 ± 14.3

74.3 ± 25.5

<0.0001*

93 vs 94

<0.0001*

<0.0001*

0.1125

Hip pop

60 vs 63

88.4 ± 13.8

71.8 ± 27.8

<0.0001*

60 vs 63

<0.0001*

<0.0001*

0.2807

Knee pop

33 vs 31

83.3 ± 14.7

79.4 ± 19.7

0.3700

33 vs 31

0.0490*

<0.0001*

0.2449

Role-physical

Joint pop

93 vs 94

79.3 ± 36.4

66.3 ± 45.2

0.0319*

93 vs 94

0.0014*

<0.0001*

0.7794

Hip pop

60 vs 63

84.6 ± 35.1

62.9 ± 46.4

0.0040*

60 vs 63

0.0003*

<0.0001*

0.3100

Knee pop

33 vs 31

69.7 ± 37.4

73.4 ± 42.3

0.7124

33 vs 31

0.7136

<0.0001*

0.6738

Bodily pain

Joint pop

93 vs 94

76.7 ± 23.2

68.6 ± 28.0

0.0326*

93 vs 94

<0.0001*

<0.0001*

0.6229

Hip pop

60 vs 63

80.4 ± 23.5

69.0 ± 28.8

0.0181*

60 vs 63

0.0001*

<0.0001*

0.8813

Knee pop

33 vs 31

70.1 ± 21.5

67.8 ± 26.8

0.7148

33 vs 31

0.1317

<0.0001*

0.5534

General health

Joint pop

93 vs 94

78.9 ± 19.7

67.7 ± 25.8

0.0011*

93 vs 94

<0.0001*

<0.0001*

0.4014

Hip pop

60 vs 63

81.1 ± 18.9

64.4 ± 27.5

0.0001*

60 vs 63

<0.0001*

<0.0001*

0.6899

Knee pop

33 vs 31

74.9 ± 20.7

74.4 ± 21.1

0.9158

33 vs 31

0.1991

<0.0001*

0.0546

Vitality

Joint pop

93 vs 94

74.9 ± 20.7

74.4 ± 21.1

<0.0001*

93 vs 94

<0.0001*

<0.0001*

<0.0001*

Hip pop

60 vs 63

61.3 ± 23.3

40.1 ± 22.6

<0.0001*

60 vs 63

<0.0001*

<0.0001*

<0.0001*

Knee pop

33 vs 31

53.8 ± 24.4

39.8 ± 19.8

0.0150*

33 vs 31

0.0001*

0.3827

0.0002*

Social functioning

Joint pop

93 vs 94

75.7 ± 23.5

56.0 ± 23.8

<0.0001*

93 vs 94

<0.0001*

0.0009*

<0.0001*

Hip pop

60 vs 63

76.9 ± 21.8

56.2 ± 24.7

<0.0001*

60 vs 63

<0.0001*

0.0005*

0.0005*

Knee pop

33 vs 31

73.5 ± 26.5

55.6 ± 22.3

0.0051*

33 vs 31

0.0006*

0.2377

0.0018*

Role-emotional

Joint pop

93 vs 94

78.9 ± 33.6

60.3 ± 39.2

0.0006*

93 vs 94

<0.0001*

<0.0001*

<0.0001*

Hip pop

60 vs 63

81.1 ± 32.1

63.5 ± 40.0

0.0080*

60 vs 63

<0.0001*

<0.0001*

<0.0001*

Knee pop

33 vs 31

74.8 ± 36.4

53.8 ± 37.2

0.0259*

33 vs 31

0.0005*

0.0031*

0.0065*

Mental health

Joint pop

93 vs 94

67.8 ± 26.6

50.1 ± 26.2

<0.0001*

93 vs 94

<0.0001*

0.0130*

<0.0001*

Hip pop

60 vs 63

68.7 ± 27.5

50.0 ± 27.8

0.0003*

60 vs 63

<0.0001*

0.0040*

<0.0001*

Knee pop

33 vs 31

66.3 ± 25.0

50.3 ± 23.1

0.0101*

33 vs 31

<0.0001*

0.4050

<0.0001*

Physical component and mental component summaries

         

Physical component summary

Joint pop

93 vs 94

52.2 ± 7.5

48.8 ± 10.9

0.0135*

93 vs 94

0.0310*

<0.0001*

0.0850

Hip pop

60 vs 63

53.7 ± 7.6

47.8 ± 11.4

0.0009*

60 vs 63

0.0048*

<0.0001*

0.0201*

Knee pop

33 vs 31

49.5 ± 6.6

50.9 ± 9.8

0.5114

33 vs 31

0.5968

<0.0001*

0.8457

Mental component summary

Joint pop

93 vs 94

46.6 ± 13.0

37.1 ± 13.6

<0.0001*

93 vs 94

<0.0001*

0.0002*

<0.0001*

Hip pop

60 vs 63

47.1 ± 13.1

38.2 ± 14.4

0.0004*

60 vs 63

<0.0001*

0.0053*

<0.0001*

Knee pop

33 vs 31

45.5 ± 13.1

35.1 ± 11.6

0.0013*

33 vs 31

<0.0001*

0.0024*

<0.0001*

  1. * Significance at p < 0.05
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