Table 1

Demographics and baseline characteristics of the intent to treat population (n=83) with mean (SD), n (%), or median, where appropriate

Pramipexole (n=44)Placebo (n=39)Total (n=83)
Sex (n (%)):
    Male30 (68)30 (77)60 (72)
    Female14 (32)9 (23)23 (28)
Age (y):
    Mean (SD)62.0 (10.1)65.4 (7.1)63.6 (8.9)
    Range35–8047–8035–80
Duration of PD (y):
    Mean (SD)6.5 (4.0)6.0 (3.5)6.3 (3.8)
    Range0.9–172.0–160.9–17
Duration of drug treatment (y):
    Mean (SD)3.9 (3.1)3.6 (3.5)3.8 (3.3)
Levodopa dose (mg):
    Median300300300
    Range50–700100–170050–1700
Patients (n (%)):
    With no levodopa5 (11)5 (13)10 (12)
    ≤300 mg25 (57)18 (46)43 (52)
    >300 mg14 (32)16 (41)30 (36)
Patients without “off” periods (at baseline) (n (%))22 (50)16 (41)38 (46)
Hoehn and Yahr Stage: in “on” periods (n (%)):
    I6 (14)4 (10)10 (12)
    I.54 (9)5 (13)9 (11)
    II22 (50)20 (51)42 (51)
    II.510 (23)7 (18)17 (20)
    III2 (4)3 (8)5 (6)
    IV000
Hoehn and Yahr Stage: in “off” periods (n (%)):
    I01 (3)1 (1)
    I.502 (5)2 (2)
    II3 (7)6 (15)9 (11)
    II.512 (27)10 (26)22 (27)
    III7 (16)4 (10)11 (13)
    IV01 (3)1 (1)
Tremor score (mean (SD))11.9 (5)10.9 (3.5)11.4 (4.3)
    Item 16 (reported)2.2 (0.8)2.1 (0.7)2.2 (0.7)
    Item 20 (rest)6.3 (3.4)5.8 (2.2)6.1 (2.9)
    Item 21 (action/postural)3.3 (1.6)3.0 (1.8)3.2 (1.7)
UPDRS (mean (SD)):
    UPDRS II/III sum score47.2 (21.1)43.6 (14.4)45.5 (18.2)
    UPDRS II(mean “on/off”)13 (6.4)11.5 (4.6)12.3 (5.7)
    UPDRS III (“on”)34.2 (15.3)32.1 (11)33.2 (13.4)
Patient's diary (mean (SD)):
    Daily living20.2 (14.9)17.3 (10.8)18.8 (13.1)
    Severity6.1 (2.9)5.7 (2.3)5.9 (2.6)
Long term EMG:
    Tremor occurrence (%, mean (SD))41.8 (21.5)49.5 (21.6)45.5 (21.8)