Table 2

Inter-rater reliability (ICC) of motor impairment items in clinical assessment

Shared items	SPES/SCOPA	UPDRS	Non-shared items
*Agreement is fair (ICC = 0.21–0.40) – all other agreements are at least “moderate” (>0.40)²⁵;
†estimates unreliable (insufficient dispersion); % agreement 97.10 (R leg) and 91.20 (L leg). Eight items in UPDRS (U) and two items in SPES/SCOPA (S) with poor agreement (⩽0.40).
ICC, intra-class correlation coefficient; L, left; mov, movement; R, right; UPDRS, Unified Parkinson’s Disease Rating Scale.
Rest tremor R	0.63	0.53
Rest tremor L	0.67	0.45
Postural tremor R	0.34*	0.34*
Postural tremor L	0.64	0.58
Rapid alternating mov R	0.58	0.59
Rapid alternating mov L	0.45	0.50
Rigidity R	0.27*	0.38*
Rigidity L	0.61	0.64
Rise from chair	0.83	0.83
Postural instability	0.60	0.59
Gait	0.60	0.63
Speech	0.55	0.68
	0.57		Freezing in “on”
	0.79		Swallowing
		0.36*	Facial expression
		0.21*	Rest tremor head
		0.00†	Rest tremor R leg
		0.00†	Rest tremor L leg
		0.59	Rigidity head
		0.29*	Rigidity R leg
		0.44	Rigidity L leg
		0.46	Finger tap R
		0.39*	Finger tap L
		0.28*	Hand movements R
		0.67	Hand movements L
		0.53	Leg agility R
		0.61	Leg agility L
		0.66	Posture
		0.23*	Body bradykinesia