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Table 3 Measures of agreement, disagreement and association in assessments on the items of quality-of-life 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
Quality-of-Life Quality-of-Life PA (%) (95% CI) (95% CI)
rs D
Work situation To what extent do your pain complaints limit your way of living? 46 0.30 0.11
43% (0.15 to 0.44) (0 to 0.23)
rs 0.53 0.10
Leisure time Limitations in leisure activities 89 0.52 0.15
21% (0.42 to 0.62) (0.07 to 0.23)
rs 0.42 0.14
Family situation Limitations in social activities with your family. friends 89 0.59 0.20
18% (0.47 to 0.70) (0.07 to 0.32)
rs 0.37 0.14
Relationship Limitations in social activities with your family. friends 89 0.59 0.26
17% (0.47 to 0.72) (0.10 to 0.41)
rs 0.26 0.17
Contacts with friends Limitations in social activities with your family. friends 89 0.50 0.02
25% (0.40 to 0.59) (0 to 0.05)
rs 0.56 0.04
Health To what extent do your pain complaints limit your way of living? 88 0.27 0.11
49% (0.17 to 0.38) (0.03 to 0.20)
rs 0.51 0.10
Insomnia I have sleeping disturbances 87 0.17 0.001
64% (0.10 to 0.23) (0 to 0.003)
rs = 0.84 0.004
Low. downheated I feel down 89 0.14 0.07
56% (0.06 to 0.22) (0.01 to 0.12)
rs 0.75 0.07
Stress tolerant I feel impatient 87 0.11 0.20
41% (-0.01 to 0.23) (0.06 to 0.34)
rs 0.50 0.14
Concentration difficulties I have difficulty concentrating 88 0.06 0.03
53% (-0.02 to 0.13) (0 to 0.06)
rs 0.80 0.05
  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).