Fig 1.
Distribution of the global population in 2020 [4] and prevalence of global Parkinson’s disease in 2016, by age [5].
The total world population amounts to 7,794,798,729. Prevalence is expressed as the percentage of the population that is affected by the disease.
Table 1.
Comparison of demographic and clinical characteristics of old-old versus young-old PD patients.
Table 2.
Comparison of demographic and clinical characteristics for old-old PD patients with disease duration <10 years versus those with disease duration ≥10 years.
Fig 2.
Radar graph of absolute correlations between age, disease duration and disease variables.
UPDRS, Unified Parkinson’s Disease Rating Scale; H&Y, Hoehn & Yahr; NMSQuest, Non-Motor Symptoms Questionnaire; TMSE, Thai Mental State Examination; LED, levodopa equivalent dose; S&E-ADL, Schwab and England Activities of Daily Living; CCI, Charlson Cormorbidity Index.
Fig 3.
Radar graph of odds ratio visualization for disease milestones difference by age and disease duration.