Table 4.

NSD stage by Hoehn and Yahr stage among PPMI participants with PD phenotype

	Hoehn and Yahr (OFF) stagea
Variable	1 (N = 236)	2 (N = 392)	3 (N = 7)
NSD stage, n (%)
0	0	0	0
1A	0	0	0
1B	0	0	0
2A	0	2 (1%)	0
2B	81 (34%)	62 (16%)	0
3	137 (58%)	261 (67%)	2 (29%)
4	16 (7%)	64 (16%)	5 (71%)
5	2 (1%)	2 (1%)	0
6	0	1 (<1%)	0

^aHoehn and Yahr (OFF) stage was not collected at baseline for 26 participants.