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Table 2 Measures of agreement, disagreement and association in assessments on the items of function/activity in the Functional Barometer, FB(1.0) and on similar items on the Balanced Inventory for Spinal Disorders (BIS)

From: The functional barometer –a self-report questionnaire in accordance with the international classification of functioning, disability and health for pain related problems; validity and patient-observer comparisons

The FB(1.0) items The BIS items n RP RV
Function/activity Physical limitations PA (%) (95% CI) (95% CI)
r s D
Walking Outdoor activities (shopping etc) 89 0.16 0.17
36% (0.04 to 0.28) (0.08 to 0.26)
rs 0.45 0.14
Walking Walking ability 87 -0.36 0.04
32% (-0.45 to -0.26) (0.008 to 0.06)
rs 0.73 0.06
Walking up and down stairs Walking ability 87 -0.37 0.09
32% (-0.47 to -0.26) (0.03 to 0.14)
rs 0.61 0.10
Making the bed Indoor activities (cleaning, cooking) 85 0.40 0.11
28% (0.30 to 0.51) (0.04 to 0.17)
rs,0.55 0.11
Going by car, bus, train Outdoor activities (shopping etc) 87 0.23 0.22
39% (0.10 to 0.35) (0.09 to 0.34)
rs 0.40 0.16
Going by car, bus, train Leisure activities e.g. traveling, sports, societies 87 0.44 0.18
34% (0.33 to 0.54) (0.07 to 0.29)
rs 0.47 0.14
Lifting, carrying a shopping bag Outdoor activities (shopping, etc) 89 -0.06 0.13
45% (-0.17 to 0.05) (0.02 to 0.25)
rs 0.53 0.10
Exercise/sports Leisure activities e.g. traveling, sports, societies 89 0.05 0.09
43% (-0.05 to 0.16) (0.03 to 0.16)
rs 0.56 0.10
Easy work Indoor activities (cleaning, cooking) 86 0.41 0.18
30% (0.29 to 0.52) (0.08 to 0.29)
rs 0.43 0.15
Sleeping in nights I have sleeping disturbances 86 0.15 0.008
53% (0.077 to 0.22) (0 to 0.02)
rs 0.84 0.02
Ordinary housework Indoor activities (cleaning, cooking 87 0.37 0.06
40% (0.27 to 0.46) (0.02 to 0.10)
rs 0.62 0.08
  1. The measures of percentage agreement (PA), of the systematic disagreement in position (RP), of individual variability (RV), of disorder (D), and corresponding 95% confidence intervals (95% CI), and the Spearman rank-order correlation coefficient (rs).