From: Feasibility of a randomized single-blind crossover trial to assess the effects of the second-generation slow-release dopamine agonists pramipexole and ropinirole on cued recall memory in idiopathic mild or moderate Parkinson’s disease without cognitive impairment
Age (years)
Frequency
51–55
2 (female = 1, male = 1)
56–60
4 (female = 1, male = 3)
61–65
6 (female = 2, male = 4)
66–70
3 (female = 1, male = 2)
71–75
5 (female = 1, male = 4)
76–80
2 (male = 2)