Table 1 Demographic characteristics of PD cases and controls
From: Association of Nrf2-encoding NFE2L2 haplotypes with Parkinson's disease
Parameter | Parkinson | Control | p-value1 |
|---|---|---|---|
Swedish cases and controls | Â | Â | Â |
   Number of subjects | 165 | 190 |  |
   Age at sampling (years) | 68.2 ± 8.8 | 69.1 ± 9.3 | 0.698 |
   Age at onset (years) | 59.0 ± 10.2 | --- | --- |
   Sex (Female) | 71 (43.0) | 120 (63.2) | <0.001 |
(Male) | 94 (57.0) | 70 (36.8) | Â |
   Current smoker | 9 (8.7) | 13 (8.3) | 0.897 |
   Ever smoked | 38 (36.9) | 81 (51.6) | 0.020 |
   Parkinson's disease in family | 40 (24.8) | 18 (9.5) | <0.001 |
   Alzheimer's disease in family | 7 (4.3) | 8 (4.3) | 0.976 |
Polish cases and controls | Â | Â | Â |
   Number of subjects | 192 | 192 |  |
   Age at sampling (years) | 63.7 ± 10.9 | 72.9 ± 9.9 | <0.001 |
   Age at onset (years) | 55.2 ± 10.9 | --- | --- |
   Sex (Female) | 75 (39.1) | 75 (39.1) | 1.000 |
(Male) | 117 (60.9) | 117 (60.9) | Â |