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

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

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)	41	32%	(-0.39 to 0.02)	(0.09 to 0.55)	0.20
Joint mobility	41	29%	-0.16	0.36	0.21
(ICF b 710)	41	29%	(-0.38 to 0.05)	(0.07 to 0.64)	0.21
Muscle strength	39	18%	-0.29	0.35	0.20
(ICF b 730)	39	18%	(-0.51 to -0.07)	(0.07 to 0.63)	0.20
Endurance	39	23%	-0.17	0.38	0.23
(ICF b 740)	39	23%	(-0.41 to 0.06)	(0.12 to 0.64)	0.23
Walking	40	33%	-0.31	0.20	0.14
(ICF d 450)	40	33%	(-0.49 to -0.13)	(0.002 to 0.40)	0.14
Walking in stairs	41	51%	-0.11	0.29	0.19
(ICF d 4551)	41	51%	(-0.29 to 0.07)	(0.07 to 0.52)	0.19
Keeping posture	41	22%	-0.60	0.15	0.13
(ICF d 4153)	41	22%	(-0.75 to -0.45)	(0.02 to 0.27)	0.13
Making the bed	40	30%	0.01	0.27	0.19
(ICF d 649)	40	30%	(-0.19 to 0.22)	(0.08 to 0.47)	0.19
Ordinary housework	41	29%	-0.27	0.09	0.11
(ICF d 640)	41	29%	(-0.43 to -0.11)	(0.02 to 0.17)	0.11
Lifting/carrying things	39	28%	-0.30	0.40	0.24
(ICF d 430)	39	28%	(-0.53 to -0.07)	(0.13 to 0.68)	0.24
Driving a car	39	33%	-0.06	0.33	0.22
(ICF d 4751)	39	33%	(-0.28 to 0.15)	(0.09 to 0.57)	0.22
Using transportation	41	29%	-0.46	0.31	0.21
(ICF d 470)	41	29%	(-0.65 to -0.27)	(0.11 to 0.52)	0.21

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

ISSN: 1472-6963