Table 1.
Demographic Characteristics of study population
| Cases n=289 | Controls n=270 | |||
|---|---|---|---|---|
| No. | % | No. | % | |
| Gender | ||||
| Female | 133 | 46.0 | 131 | 48.5 |
| Male | 156 | 54.0 | 139 | 51.5 |
| Age (median (range)) | 70 (34–87) | 69 (35–92) | ||
| Family History PD1 | ||||
| No | 253 | 87.5 | 240 | 88.9 |
| Yes | 36 | 12.5 | 30 | 11.1 |
| Race/ethnicity | ||||
| White | 235 | 81.3 | 220 | 81.5 |
| Black | 3 | 1.0 | 9 | 3.3 |
| Latino | 32 | 11.1 | 19 | 7.0 |
| Asian | 4 | 1.4 | 11 | 4.1 |
| Native American | 15 | 5.2 | 11 | 4.1 |
| Smoking Packyears2 | ||||
| 0 | 153 | 52.9 | 111 | 42.4 |
| >0 to <10 | 59 | 20.4 | 65 | 24.3 |
| ≥10 to <40 | 51 | 17.7 | 60 | 22.4 |
| ≥40 | 26 | 9.0 | 32 | 11.9 |
1
Defined as having a first degree relative with Parkinson’s disease
2
Missing packyear data for 2 smokers (n=2)