Table 3.
Demographic variables for PD-OD and PD-NOD groups stratified by age.
| Variables | Age > 55 | Age from 36 to 55 | P1 | P2 | ||
|---|---|---|---|---|---|---|
| PD-OD (N = 111) | PD-NOD (N = 83) | PD-OD (N = 99) | PD-NOD (N = 27) | |||
| Age [mean ± SD]a | 67.11 ± 5.27 | 64.33 ± 5.35 | 49.67 ± 4.68 | 48.70 ± 4.43 | <0.0010 | 0.340 |
| Age at onset [mean ± SD]a | 61.04 ± 7.58 | 58.81 ± 6.31 | 44.51 ± 6.23 | 44.22 ± 5.32 | 0.031 | 0.830 |
| Duration of disease [mean ± SD]a | 6.07 ± 4.49 | 5.52 ± 3.48 | 5.34 ± 3.80 | 4.48 ± 3.51 | 0.351 | 0.291 |
| Male [patients (%)]b | 57 (51.4) | 37 (44.6) | 55 (55.6) | 16 (59.3) | 0.385 | 0.828 |
| BMI [mean ± SD]a | 22.69 ± 3.06 | 23.21 ± 3.28 | 22.92 ± 2.75 | 23.78 ± 3.39 | 0.254 | 0.176 |
| Education [patients (%)]b | 1.000 | 0.823 | ||||
| Primary school | 83 (74.8) | 63 (75.9) | 60 (60.6) | 16 (59.3) | ||
| Middle school and above | 25 (22.5) | 20 (24.1) | 35 (35.4) | 11 (40.7) | ||
a
t-test.
b
Chi-squared test.
P1, P-value of comparison between PD-OD and PD-NOD older than 55.
P2, P-value of comparison between PD-OD and PD-NOD aging from 36 to 55. The bold values represent P < 0.05 which means there are statistical significance.