TY - JOUR
T1 - Comparing the NIS vs. MRC and INCAT sensory scale through Rasch analyses
AU - Draak, Thomas H.P.
AU - Vanhoutte, Els K.
AU - Van Nes, Sonja I.
AU - Gorson, Kenneth C.
AU - Van Der Pol, W. Ludo
AU - Notermans, Nicolette C.
AU - Nobile-Orazio, Eduardo
AU - Lewis, Richard A.
AU - Léger, Jean Marc
AU - Van Den Bergh, Peter Y.K.
AU - Lauria, Giuseppe
AU - Bril, Vera
AU - Katzberg, Hans
AU - Lunn, Michael P.T.
AU - Pouget, Jean
AU - Van Der Kooi, Anneke J.
AU - Hahn, Angelika F.
AU - Van Den Berg, Leonard H.
AU - Van Doorn, Pieter A.
AU - Cornblath, David R.
AU - Faber, Catharina G.
AU - Merkies, Ingemar S.J.
N1 - Publisher Copyright:
© 2015 Peripheral Nerve Society.
PY - 2015/9/1
Y1 - 2015/9/1
N2 - We performed a comparison between Neuropathy Impairment Scale-sensory (NISs) vs. the modified Inflammatory Neuropathy Cause and Treatment sensory scale (mISS), and NIS-motor vs. the Medical Research Council sum score in patients with Guillain-Barré syndrome (GBS), chronic inflammatory demyelinating polyradiculoneuropathy (CIDP), and IgM monoclonal gammopathy of undetermined significance-related polyneuropathy (MGUSP). The ordinal data were subjected to Rasch analyses, creating Rasch-transformed (RT)-intervals for all measures. Comparison between measures was based on validity/reliability with an emphasis on responsiveness (using the patient's level of change related to the individually obtained varying SE for minimum clinically important difference). Eighty stable patients (GBS: 30, CIDP: 30, and MGUSP: 20) were assessed twice (entry: two observers; 2-4 weeks later: one observer), and 137 newly diagnosed or relapsing patients (GBS: 55, CIDP: 59, and IgM-MGUSP: 23) were serially examined with 12 months follow-up. Data modifications were needed to improve model fit for all measures. The sensory and motor scales demonstrated approximately equal and acceptable validity and reliability scores. Responsiveness scores were poor but slightly higher in RT-mISS compared to RT-NISs. Responsiveness was equal for the RT-motor scales, but higher in GBS compared to CIDP; responsiveness was poor in patients with MGUSP, suggesting a longer duration of follow-up in the latter group of patients.
AB - We performed a comparison between Neuropathy Impairment Scale-sensory (NISs) vs. the modified Inflammatory Neuropathy Cause and Treatment sensory scale (mISS), and NIS-motor vs. the Medical Research Council sum score in patients with Guillain-Barré syndrome (GBS), chronic inflammatory demyelinating polyradiculoneuropathy (CIDP), and IgM monoclonal gammopathy of undetermined significance-related polyneuropathy (MGUSP). The ordinal data were subjected to Rasch analyses, creating Rasch-transformed (RT)-intervals for all measures. Comparison between measures was based on validity/reliability with an emphasis on responsiveness (using the patient's level of change related to the individually obtained varying SE for minimum clinically important difference). Eighty stable patients (GBS: 30, CIDP: 30, and MGUSP: 20) were assessed twice (entry: two observers; 2-4 weeks later: one observer), and 137 newly diagnosed or relapsing patients (GBS: 55, CIDP: 59, and IgM-MGUSP: 23) were serially examined with 12 months follow-up. Data modifications were needed to improve model fit for all measures. The sensory and motor scales demonstrated approximately equal and acceptable validity and reliability scores. Responsiveness scores were poor but slightly higher in RT-mISS compared to RT-NISs. Responsiveness was equal for the RT-motor scales, but higher in GBS compared to CIDP; responsiveness was poor in patients with MGUSP, suggesting a longer duration of follow-up in the latter group of patients.
KW - MRC
KW - NIS
KW - Rasch
KW - mISS
KW - responsiveness
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U2 - 10.1111/jns.12127
DO - 10.1111/jns.12127
M3 - Article
C2 - 26110493
AN - SCOPUS:84942588769
SN - 1085-9489
VL - 20
SP - 277
EP - 288
JO - Journal of the Peripheral Nervous System
JF - Journal of the Peripheral Nervous System
IS - 3
ER -