Table 1.
General characteristics of the study population, n = 852.
| Characteristic | Cases (n = 357) | Controls (n = 495) |
|---|---|---|
| Age (years) of PD diagnosis [median (range)] | 70 (34–88) | |
| Age (years) at interview [median (range)] | 72 (37–90) | 68 (35–94) |
| Male sex [n (%)] | 204 (57) | 243 (49) |
| First degree relative with PD [n (%)] | ||
| No | 304 (85) | 450 (91) |
| Yes | 53 (15) | 45 (09) |
| Cigarette smoking [n (%)] | ||
| Never | 188 (53) | 227 (46) |
| Former | 150 (42) | 221 (45) |
| Current | 19 (05) | 47 (09) |
| European ancestry [n (%)] | ||
| Yes | 288 (81) | 441 (89) |
| No | 69 (19) | 54 (11) |
| Education (years) [n (%)] | ||
| 0 to < 12 | 65 (18) | 43 (09) |
| 12 | 95 (27) | 101 (20) |
| > 12 | 197 (55) | 351 (71) |
| PON1 metabolizer status [n (%)]a | ||
| Faster | 264 (85) | 376 (89) |
| Slower | 45 (15) | 46 (11) |
| a121 participants missing PON1 genotypes: 48 cases (13%) and 73 controls (15%). | ||