Research Article

Evolution of Initial Pharmacologic Treatment of Newly Diagnosed Parkinson’s Disease Patients over a Decade in Singapore

Table 1

Patient characteristics and treatment based on the year of diagnosis.

Entire cohort n = 2302007 cohort n = 832017 cohort n = 147 value

Mean (SD) age, years66.7 (10.3)66.4 (10.1)66.9 (10.5)0.737

Male, n (%)131 (57.0)48 (57.8)83 (56.5)0.840

Mean (SD) HY stage2.3 (0.7); n = 2222.4 (0.7); n = 762.2 (0.6); n = 1460.196

Mean (SD) duration of illness, months65.5 (57.0); n = 22859.7 (56.4); n = 8268.6 (57.3); n = 1460.246

Rest tremor present125 (61.3); n = 20444 (69.8); n = 6381 (57.4); n = 1410.093

Monotherapy, n (%)196 (85.2)70 (84.3)126 (85.7)0.778

Treatment, n (%)

LD
 Total166 (72.2)55 (66.3)111 (75.5)0.133
 Monotherapy151 (65.7)53 (63.9)98 (66.7)

Ergot DA
 Total19 (8.3)16 (19.3)3 (2.0)<.001
 Monotherapy10 (4.3)10 (12.0)0 (0.0)

Nonergot DA
 Total18 (7.8)4 (4.8)14 (9.5)0.202
 Monotherapy10 (4.3)1 (1.2)9 (6.1)

MAOBI
 Total48 (20.9)11 (13.3)37 (25.2)0.033
 Monotherapy22 (9.6)4 (4.8)18 (12.2)

Anticholinergic
 Total14 (6.1)10 (12.0)4 (2.7)0.004
 Monotherapy3 (1.3)2 (2.4)1 (.07)

Mean (SD) LED, mg/day204 (113)198 (106)207 (117)0.566

DA, dopamine agonist; HY, Hoehn and Yahr; LD, levodopa; LED, levodopa equivalent dose; MAOBI, monoamine oxidase type B inhibitor; SD, standard deviation. Combination and monotherapy.