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Table 3 Mean scores and standard deviations of the scales of the Multidimensional Pain Inventory clusters at 4 weeks before and at entry to a pain program

From: Reliability of the Multidimensional Pain Inventory and stability of the MPI classification system in chronic back pain

MPI scales

MPI clusters at T0 (m,s)

MPI clusters at T1 (m,s)

 

ID n = 49

AC n = 51

DYS n = 104

ID n = 55

AC n = 66

DYS n = 83

Pain severity (100 = most)

75.9 (15.1)

63.0 (17.0)

82.6 (12.7)

76.4 (12.1)

59.5 (15.2)

83.6 (9.4)

Interference (100 = worst)

77.2 (13.0)

58.9 (16.4)

81.3 (10.9)

76.6 (11.7)

57.5 (15.2)

81.7 (9.7)

Life control (100 = best)

42.2 (17.6)

65.2 18.2)

45.1 (22.2)

42.7 (19.2)

63.7 (17.0)

44.4 (20.9)

Negative mood (100 = worst)

66.3 (13.6)

39.8 (17.3)

68.9 (15.0)

67.3 (14.9)

38.0 (17.3)

68.8 (18.0)

Support (100 = most)

44.0 (23.5)

61.9 (19.7)

85.0 (13.7)

41.6 (24.0)

66.9 (18.5)

88.7 (12.0)

Negative, punishing responses (100 = most)

34.4 (29.1)

11.0 (13.8)

28.6 (26.5)

33.0 (29.2)

13.9 (15.3)

26.9 (24.1)

Solicitous responses (100 = best)

33.3 (17.1)

47.5 (20.0)

75.5 (15.2)

34.5 (16.7)

53.0 (19.0)

79.0 (15.5)

Distracting responses (100 = best)

30.5 (18.7)

43.0 (21.2)

69.7 (17.6)

33.7 (20.5)

50.5 (19.4)

73.5 (16.9)

General activity (100 = most)

34.1 (12.0)

38.1 (12.1)

33.0 (14.9)

37.5 (11.6)

38.2 (12.5)

30.9 (14.3)

  1. MPI: Multidimensional Pain Inventory, ID: MPI cluster interpersonally distressed, AC: MPI cluster adaptive copers, DYS: MPI cluster dysfunctional, T0: 4 weeks before entry to pain management program, T1: at entry to pain management program, m: mean, s: standard deviation.