Mean ± SD or count (%)

Age (years)

73.2 ± 9.1

40 - 49

8 (1.6%)

50 - 59

35 (7.0%)

60 - 69

107 (21.4%)

70 - 79

226 (45.3%)

80 - 89

115 (23.0%)

90 - 99

8 (1.6%)

Sex

Male

268 (53.7%)

Female

231 (46.3%)

Race

Caucasian

497 (99.6%)

Asian

1 (0.2%)

Other

1 (0.2%)

Disease duration (years)

3.6 ± 3.7

<1

60 (12.0%)

1 - 5

332 (66.5%)

6 - 10

82 (16.4%)

11 - 15

17 (3.4%)

16 - 20

6 (1.2%)

20 - 25

2 (0.4%)

Presence of motor fluctuations at baseline

No

412 (82.6%)

Yes

87 (17.4%)

Antiparkinsonian treatment at baseline

No

100 (20.0%)

Yes

399 (80.0%)

L-dopa + benserazide

144 (28.9%)

LCE

75 (15.0%)

Ropinirole

74 (14.8%)

Pramipexole

67 (13.4%)

Rotigotine

46 (9.2%)

Selegiline

56 (11.2%)

Amantadine

37 (7.4%)

Procyclidine

1 (0.2%)

Biperiden

4 (0.8%)

Other

42 (8.4%)