Table 1.
Demographics and main risk factors in our study population.
| Variable | Group | p | ||
|---|---|---|---|---|
| Total n = 600 | PD n = 300 | Control n = 300 | ||
| Sex | ns | |||
| Male (%) | 50.5 | 51 | 50 | |
| Female (%) | 49.5 | 49 | 50 | |
|
| ||||
| Age at interview | ns | |||
| Mean ± st. dev. | 72.8 ± 10.3 | 70.6 ± 10.4 | 69.4 ± 9.4 | |
| 40–70 y (%) | 49.7 | 47 | 53 | |
| 71–100 y (%) | 50.3 | 53 | 47 | |
|
| ||||
| Family history of PD | <0.000001 | |||
| Negative (%) | 87.2 | 80.3 | 94 | |
| Positive (%) | 12.8 | 19.7 | 6 | |
|
| ||||
| Toxicants exposure | <0.001 | |||
| No (%) | 62 | 56 | 67.3 | |
| Yes (%) | 38 | 44 | 32.7 | |
|
| ||||
| Smoking status | <0.00001 | |||
| Never (%) | 48.8 | 58.3 | 39.3 | |
| Former (%) | 15.7 | 8.7 | 22.7 | |
| Current (%) | 35.5 | 33 | 38 | |
|
| ||||
| Alcohol consumption | <0.05 | |||
| No (%) | 51.5 | 58.3 | 44.7 | |
| <200 mL/day (%) | 45.8 | 38.7 | 53.0 | |
| 200–500 mL/day (%) | 2.7 | 3.0 | 2.3 | |