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Table 4 Measures of agreement, systematic disagreement (bias) and individual variability in pain-related problems with function between patient’s assessments on the validated Functional Barometer, FB(2.0) and the observer’s ICF-classifications

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(2.0) items of function and corresponding ICF codes

n

PA (%)

RP (95% CI)

RV (95% CI)

D

Do you have problem because of your pain with….

Dressing

41

32%

-0.19

0.32

0.20

(ICF d 540)

(-0.39 to 0.02)

(0.09 to 0.55)

Joint mobility

41

29%

-0.16

0.36

0.21

(ICF b 710)

(-0.38 to 0.05)

(0.07 to 0.64)

Muscle strength

39

18%

-0.29

0.35

0.20

(ICF b 730)

(-0.51 to -0.07)

(0.07 to 0.63)

Endurance

39

23%

-0.17

0.38

0.23

(ICF b 740)

(-0.41 to 0.06)

(0.12 to 0.64)

Walking

40

33%

-0.31

0.20

0.14

(ICF d 450)

(-0.49 to -0.13)

(0.002 to 0.40)

Walking in stairs

41

51%

-0.11

0.29

0.19

(ICF d 4551)

(-0.29 to 0.07)

(0.07 to 0.52)

Keeping posture

41

22%

-0.60

0.15

0.13

(ICF d 4153)

(-0.75 to -0.45)

(0.02 to 0.27)

Making the bed

40

30%

0.01

0.27

0.19

(ICF d 649)

(-0.19 to 0.22)

(0.08 to 0.47)

Ordinary housework

41

29%

-0.27

0.09

0.11

(ICF d 640)

(-0.43 to -0.11)

(0.02 to 0.17)

Lifting/carrying things

39

28%

-0.30

0.40

0.24

(ICF d 430)

(-0.53 to -0.07)

(0.13 to 0.68)

Driving a car

39

33%

-0.06

0.33

0.22

(ICF d 4751)

(-0.28 to 0.15)

(0.09 to 0.57)

Using transportation

41

29%

-0.46

0.31

0.21

(ICF d 470)

(-0.65 to -0.27)

(0.11 to 0.52)

  1. The measures of percentage agreement (PA), the systematic disagreement in position (RP), individual variability (RV), disorder (D), and corresponding 95% confidence intervals (95% CI).