Mean age, y (SD) | 75.2 (6.8) | 75.4 (5.7) | 73.1 (5.8) | 76.4 (6.8) |
Men, n (%) | 22 (54) | 30 (75) | 27 (64) | 22 (54) |
Duration of cognitive symptoms at baseline, y (SD) | NA | NA | 2.8 (2.4) (n = 38) | 2.5 (1.9) (n = 39) |
Mean MMSE (SD) (maximum score = 30) | 28 (2) | 27 (2) | 19 (6) | 16 (5) |
Mean total CAMCOG (SD) (maximum score = 105) | 94 (4) | 89 (7) | 64 (15) | 59 (14) (n = 38) |
Duration of parkinsonism at baseline, y (SD) | NA | 4.3 (4.2) | 8.5 (6.4) | 2.0 (1.5) (n = 16) |
Baseline mean L-dopa dose mg (SD), number of cases | NA | 435 (309) (n = 29) | 433 (227) (n = 40) | 307 (249) (n = 7) |
Two year mean L-dopa dose mg (SD), number of cases | NA | 494 (290) (n = 34) | 460 (242) (n = 23) | 310 (185) (n = 18) |
Motor subtype: | NA | | | |
PIGD, n (%) | | 16 (40) | 35 (83) | 30 (73) |
TD, n (%) | | 18 (45) | 3 (7) | 4 (10) |
Indeterminate, n (%) | | 6 (15) | 4 (10) | 7 (17) |