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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).