Table 3.

Motor features

	Sporadic	Familial (combined)	C9orf72 expansion	GRN mutation	MAPT mutation	Family history
PSPRS (Total)	7.5 (7.7)	7.2 (9.3)	5.8 (6.9)	6.7 (8.7)	9.0 (12.3)	8.8 (10.4)
UPDRS (Total)	5.4 (8.5)	5.8 (11.9)	2.5 (4.7)	9.0 (12.1)	10.0 (18.3)	4.5 (7.8)
Gait	0.3 (0.8)	0.3 (0.6)	0.1 (0.6)	0.5 (0.9)	0.4 (0.7)	0.1 (0.4)
Limb Rigidity	0.3 (0.7)	0.3 (0.7)	0.1 (0.4)	0.7 (1.0)	0.6 (0.9)	0.4 (0.7)
Dystonia	0.02 (0.2)	0.04 (0.3)	0	0.3 (0.8)	0	0
Finger Tap	0.23 (0.4)	0.23 (0.5)	0.08 (0.3)	0.33 (0.7)	0.40 (0.6)	0.29 (0.5)
Tremor	0.17 (0.4)	0.23 (0.5)	0.07 (0.3)	0.36 (0.5)	0.40 (0.6)	0.29 (0.5)
Postural stability	0.24 (0.7)	0.16 (0.6)	0.06 (0.3)	0	0.40 (0.9)	0.15 (0.6)