Table 1.
Characteristics of newly diagnosed Parkinson’s disease cohort (n = 84,104)
| n | % | |
| Gender | ||
| Female | 35,060 | 41.69 |
| Male | 49,044 | 58.31 |
| Age | ||
| Mean (SD) [median] | 73.4 (12.0) [75.0] | |
| <50 | 2,508 | 2.98 |
| 50–70 | 28,670 | 34.09 |
| >70 | 52,926 | 62.93 |
| Region | ||
| North East | 16,248 | 19.32 |
| North Central | 25,962 | 30.87 |
| South | 25,153 | 29.91 |
| West | 15,319 | 18.21 |
| Unknown | 1,422 | 1.69 |
| Year of First PD Claim | ||
| 2008–2010 | 30,482 | 36.24 |
| 2011–2013 | 31,702 | 37.69 |
| 2014–2016 | 21,920 | 26.06 |
| Specialty of First PD Claim | ||
| Neurologist | 33,617 | 39.97 |
| Other | 50,487 | 60.03 |
| Length of follow-up (years) | ||
| From database enrollment [mean (SD)] | 5.9 (2.6) | |
| From PD diagnosis [mean (SD)] | 2.3 (1.9) |
Regions defined as per US census. Total database enrollment time includes 1 year ‘disease-free’ period for each patient. PD, Parkinson’s disease; SD, standard deviation.