. 2021 Sep 6;8(7):1092–1099. doi: 10.1002/mdc3.13329

TABLE 4.

Discrimination and item location parameters for the 17 items with scaling anchors differing between the scales (sample = 129, observations = 2193)

UPDRS		MDS‐UPDRS		Scale that best discriminates the item
Items	Discrim	Items	Discrim	Scale that best discriminates the item
Rigidity LLE	4.765^VH	Rigidity LLE	0.981^M	UPDRS
Rigidity LUE	3.206^VH	Rigidity LUE	0.518^L	UPDRS
Rigidity Neck	1.733^VH	Rigidity Neck	2.163^VH	Both equivalent
Finger Taps Left	1.528^H	Finger Tapping Left	0.431^L	UPDRS
Rapid Alternate Movement of Hands LH	1.526^H	Pronation Supination LH	0.332^VL	UPDRS
Gait	1.447^H	Gait	0.77^M	UPDRS
Rigidity RLE	1.425^H	Rigidity RLE	1.919^VH	MDS‐UPDRS
Leg Agility Left	0.912^M	Leg Agility Left	0.262^VL	UPDRS
Stability	0.788^M	Postural Stability	0.555^L	UPDRS
Speech	0.696^M	Speech	0.677^M	Both equivalent
Posture	0.669^M	Posture	1.198^M	Both equivalent
Rigidity RUE	0.652^M	Rigidity RUE	1.199^M	Both equivalent
Leg Agility Right	0.587^L	Leg Agility Right	1.181^M	MDS‐UPDRS
Hands Movement Left	0.526^L	Hands Movement Left	−0.077^VL	UPDRS
Rapid Alternate Movement of Hands RH	0.466^L	Pronation Supination RH	1.76^VH	MDS‐UPDRS
Finger Taps Right	0.458^L	Finger Tapping Right	2.2^VH	MDS‐UPDRS
Hands Movement Right	0.022^VL	Hands Movement Right	1.517^H	MDS‐UPDRS

VL, 0.01 to 0.34; L, 0.35 to 0.64; M, 0.65 to 1.34; H, 1.35 to 1.69; VH, >1.70; RLE, right lower extremity; LLE, left lower extremity; RH, right hand; LH, left hand; LUE, left upper extremity; RUE, right upper extremity.