Table 1 Demographics and GPT scores
Measures | Cohort 1 (n = 83) | Cohort 2 (n = 369) | t/χ2 | p |
|---|---|---|---|---|
Gender (Male/Female) | 18/65 | 131/238 | 5.852 | 0.016 |
Age (M ± SD) | 18.76 ± 1.09 | 19.99 ± 1.48 | − 7.136 | 3.87e-12 |
Paternal education (%) | Â | Â | 7.839 | 0.250 |
 Less than primary school | 16.9 | 13 |  |  |
 Junior high school | 34.9 | 38.8 |  |  |
 Vocational high School | 12 | 15.7 |  |  |
 Senior high school | 8.4 | 12.5 |  |  |
 Junior college education | 13.3 | 8.9 |  |  |
 Undergraduate level | 8.4 | 10.8 |  |  |
 More than graduate level | 6 | 0.5 |  |  |
Maternal education (%) | Â | Â | 7.916 | 0.244 |
 Less than primary school | 24.1 | 19.8 |  |  |
 Junior high school | 28.9 | 33.9 |  |  |
 Vocational high School | 14.5 | 12.2 |  |  |
 Senior high school | 9.6 | 14.6 |  |  |
 Junior college education | 4.8 | 10.6 |  |  |
 Undergraduate level | 16.9 | 8.9 |  |  |
 More than graduate level | 1.2 | 0 |  |  |
GPT (M ± SD) | 21.69 ± 3.96 | 22.7 ± 4.59 | − 2.604 | 0.010 |