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Table 1 Descriptives of the three pain groups, and between group differences at 20-year follow-up

From: Chronic widespread pain and its associations with quality of life and function at a 20- year follow-up of individuals with chronic knee pain at inclusion

 

All

Mean (95% CI)

NCP

Mean (95% CI)

CRP

Mean (95% CI)

CWP

Mean (95% CI)

P-value

N (%)

121

28 (23)

57 (47)

36 (30)

 

Age

64 (63–65)

63 (61–65)

64 (62–65)

63 (61–65)

0.904

Women %

45

54

33

56

0.061

BMI (kg/m2)

27.9 (27.1–28.7)

26.9 (25.2–28.4)

27.9 (26.9–28.9)

28.8 (26.8–30.8)

0.521

Painful regions (0–18)

3.8 (3.1–4.4)

0 (0–0)

2.9 (2.4–3.4)

8.1 (7.0–9.1)

< 0.001

Knee pain (%)

40

0

35

81

< 0.001

Knee OA (%)

51

44

52

55

0.707

TFOA (%)

17

12

14

26

 

PFOA (%)

29

32

30

26

0.535a

TFPFOA (%)

5

0

8

3

 

Osteophytes (%)

91

88

94

90

0.664

KOOS-pain (0–100)

72.8 (68.9–76.8)

84.8 (78.0–91.6)

74.2 (68.2–80.3)

61.6 (55.4–67.8)

< 0.001

KOOS-symptom (0–100)

74.3 (70.8–77.9)

85.2 (80.8–89.6)

75.0 (69.5–80.5)

65.2 (58.7–71.7)

< 0.001

KOOS-ADL (0–100)

76.7 (73.0–80.4)

88.3 (82.2–94.4)

78.5 (73.3–83.7)

65.1 (58.6–71.6)

< 0.001

KOOS-Sport/Rec (0–100)

49.8 (43.9–55.7)

65.4 (53.5–77.3)

52.0 (42.8–61.2)

35.3 (26.7–43.8)

< 0.001

KOOS-QOL (0–100)

60.9 (56.3–65.5)

76.4 (68.4–84.5)

63.0 (56.2–69.7)

46.5 (39.6–53.5)

< 0.001

EQ5D (0–1)

0.75 (0.71–0.79)

0.90 (0.85–0.95)

0.74 (0.69–0.78)

0.63 (0.54–0.72)

< 0.001

SF36-PF (0–100)

72.7 (68.6–76.8)

87.1 (81.8–92.5)

72.1 (66.2–78.0)

62.3 (54.4–70.1)

< 0.001

SF36-RP (0–100)

65.0 (57.7–72.3)

89.8 (80.2–99.4)

61.3 (50.4–72.3)

51.4 (37.2–65.7)

< 0.001

SF36-BP (0–100)

56.2 (51.9–60.5)

83.8 (75.9–91.8)

52.1 (47.3–56.8)

42.1 (36.4–47.8)

< 0.001

SF36-GH (0–100)

66.0 (61.9–70.1)

75.6 (69.2–82.0)

68.9 (63.1–74.7)

53.3 (45.4–61.1)

< 0.001

SF36-VT (0–100)

63.1 (58.6–67.5)

75.0 (67.2–82.7)

64.3 (58.8–70.2)

52.5 (43.6–61.5)

0.002

SF36-SF (0–100)

85.6 (81.7–89.6)

93.5 (87.2–99.9)

87.5 (83.1–91.9)

76.7 (66.9–86.6)

0.018

SF36-RE (0–100)

80.4 (73.8–87.0)

85.9 (73.8–98.0)

84.6 (75.7–93.5)

70.4 (56.2–84.6)

0.232

SF36-MH (0–100)

79.9 (76.7–83.0)

86.5 (80.0–92.9)

81.6 (77.5–85.8)

72.2 (65.9–78.5)

0.001

  1. NCP No chronic pain, CRP chronic regional pain, CWP chronic widespread pain, BMI body mass index, TFOA radiographic tibiofemoral osteoarthritis, PFOA radiographic patellofemoral osteoarthritis, TFPFOA radiographic tibio- and patellofemoral osteoarthritis, OA osteoarthritis, TF tibiofemoral, PF patellofemoral, TFPF tibio- and patellofemoral, ADL activity of daily living, Sport/rec function in sport and recreation, QOL knee related Quality of life, PF physical function, RP role-physical, BP bodily pain, GH general health, VT vitality, SF social functioning, RE role-emotional, MH mental health
  2. aoverall p-value, chi2-test
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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