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Table 2 Intraclass Correlation Coefficients (ICC) and 95% Confidence Intervals (CI) (Lower-Upper Bound) of Test-Retest Reliability

From: Psychometric validation of the Polish version of the Central Sensitization Inventory in subjects with chronic spinal pain

Item

ICC

95% CI

1

0.83

0.773 to 0.874

2

0.837

0.782 to 0.879

3

0.91

0.876 to 0.935

4

0.879

0.837 to 0.911

5

0.88

0.838 to 0.911

6

0.828

0.77 to 0.872

7

0.814

0.752 to 0.861

8

0.785

0.716 to 0.839

9

0.788

0.719 to 0.842

10

0.828

0.77 to 0.872

11

0.753

0.674 to 0.814

12

0.879

0.837 to 0.911

13

0.861

0.813 to 0.897

14

0.804

0.74 to 0.854

15

0.878

0.835 to 0.91

16

0.801

0.735 to 0.851

17

0.742

0.661 to 0.806

18

0.736

0.654 to 0.801

19

0.843

0.79 to 0.884

20

0.886

0.846 to 0.916

21

0.884

0.843 to 0.914

22

0.833

0.775 to 0.877

23

0.874

0.83 to 0.907

24

0.87

0.826 to 0.904

25

0.82

0.759 to 0.866

F1a

0.943

0.922 to 0.958

F2b

0.95

0.931 to 0.964

F3c

0.934

0.911 to 0.952

F4d

0.897

0.86 to 0.925

Total CSI-Pol score

0.96

0.945 to 0.971

  1. aPhysical symptoms loadings. bEmotional distress loadings. cHeadache/jaw symptoms loadings. dUrological symptoms loadings. CSI-Pol Polish version of the Central Sensitization Inventory