Table 1.
Demographic characteristics of Cypriot PD cases and controls.
| Variable | Total | Cases | Controls | p-value* (test) | |
|---|---|---|---|---|---|
| Current age | N | 691 | 229 | 462 | <0.0001 (Wilcoxon) |
| Median (IQR) | 67 (17) | 70 (12) | 64.5 (16) | ||
| Age at baseline | N | 685 | 226 | 455 | <0.0001 (Wilcoxon) |
| Median (IQR) | 64 (15) | 62 (16) | 64.5 (16) | ||
| No of children | N | 691 | 229 | 462 | 0.87 (Wilcoxon) |
| Median (IQR) | 3 (1) | 3 (1) | 3 (1) | ||
| Gender | |||||
| Male | N (%) | 358 (51.5) | 127 (54.5) | 231 (50.0) | 0.26 (chi-square) |
| Female | N (%) | 337 (48.5) | 106 (45.5) | 231 (50.0) | |
| BMI (kg) | |||||
| Normal weight 20–24.9 | N (%) | 165 (27.3) | 64 (34.0) | 101 (24.3) | 0.01 (chi-square) |
| Underweight ≤20 | N (%) | 21 (3.5) | 13 (6.9) | 8 (1.9) | |
| Overweight 25–29.9 | N (%) | 252 (41.7) | 78 (41.5) | 174 (41.8) | |
| Obesity >30 | N (%) | 166 (27.5) | 33 (17.6) | 133 (32.0) | |
| Education level | |||||
| Primary school | N (%) | 281 (40.5) | 104 (45.4) | 177 (38.0) | 0.13 (chi-square) |
| Secondary school | N (%) | 94 (13.5) | 23 (10.0) | 71 (15.3) | |
| High school | N (%) | 199 (28.7) | 61 (26.6) | 138 (29.7) | |
| Bachelor's degree or higher | N (%) | 120 (17.3) | 41 (17.9) | 79 (17.0) | |
| Retirement | |||||
| Not yet | N (%) | 198 (30.8) | 30 (14.1) | 168 (39.2) | <0.001 (chi-square) |
| Yes | N (%) | 320 (49.8) | 113 (53.1) | 207 (48.3) | |
| Yes, early | N (%) | 124 (19.3) | 70 (32.9) | 54 (12.6) | |
*
P-value nominal significance threshold = 0.05.
Significant p-values are marked in bold.