Table 1.
Characteristics of the population studied
| Characteristics | Cases (N = 178) | Controls (N = 402) |
|---|---|---|
| Mean age (range) | 72.9 (41–91) | 74.3 (41–95) |
| Mean age of diagnosisa | 66.3 (35–90) | |
| Males | 110 (61.8 %) | 224 (55.7 %) |
| Females | 68 (39.2 %) | 178 (44.3 %) |
| Parkinson’s Disease | 118 | |
| Parkinsonism | 60 | |
| % Parkinsonism | 33.70 % | |
| Smokersd | 61 (34.3 %) | 177 (44.0 %) |
| Ever knocked unconsciouse | 33b (18.6 %) | 48 (11.9 %) |
| Family history of Parkinson’s diseasee | 35 (19.7 %) | 16c (4.0 %) |
| Use of pesticidese | 27 (15.2 %) | 42 (10.4 %) |
aOut of 135 cases for which this data was available
bOut of 177 cases
cOut of 401 controls
dAssociated with decreased risk for PD and PS
eAssociated with increased risk for PD and PS