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Table 2 Fit of the "Body functions and body structures" scale to Rasch model

From: Reliability, construct validity and measurement potential of the ICF comprehensive core set for osteoarthritis

ICF code ICF category title Location SE Individual Item Fit Residual Chi-Square Test Statistics p
Testlet1       
b280
s750
Sensation of pain
Structure of lower extremity
-1.682 0.075 2.286 8.795 0.012
Testlet2       
s720
s730
Structure of shoulder region
Structure of upper extremity
-0.723 0.098 0.735 3.481 0.175
Testlet3       
b715
b720
b760
Stability of joint functions
Mobility of bone functions Control of voluntary movement functions
-0.408 0.109 0.463 1.208 0.547
b130 Energy and drive functions -0.383 0.117 -0.611 5.219 0.074
b134 Sleep functions -1.096 0.147 -0.673 3.947 0.139
b152 Emotional functions -0.943 0.116 -0.207 1.773 0.412
b710 Mobility of joint functions -1.274 0.125 -0.714 3.305 0.192
b735 Muscle tone functions 3.319 0.776 -0.710 1.882 0.390
b770 Gait pattern functions 0.030 0.205 0.224 7.326 0.026
b780 Sensations related to muscles and movement functions 0.370 0.162 0.083 0.153 0.926
s770 Additional musculoskeletal structures related to movement 0.425 0.190 1.207 0.112 0.946
s799 Structures related to movement, unspecified 2.365 0.346 -0.432 3.634 0.163