Table 8. Comparison of FGA locus allele frequencies among men with impulsive violent behavior (cases) and men without impulsive violent behavior (controls) in a Han Chinese population.
| alleles | allele frequenciesa |
statistic | p-valueb | odds ratio | 95%CI | |
| cases (n=407) | controls (n=415) | |||||
| 15.2 | 0 (0.0%) | 2 (0.2%) | exact test | 0.4997 | ---- | ---- |
| 17 | 4 (0.5%) | 0 (0.0%) | exact test | 0.0599 | ---- | ---- |
| 18 | 30 (3.7%) | 16 (1.9%) | χ2=4.67 | 0.0307 | 1.95 | 1.05-3.60 |
| 19 | 38 (4.7%) | 28 (3.4%) | χ2=1.79 | 0.1812 | 1.40 | 0.85-2.31 |
| 19.2 | 2 (0.3%) | 0 (0.0%) | exact test | 0.2450 | ---- | ---- |
| 20 | 34 (4.2%) | 44 (5.3%) | χ2=1.15 | 0.2837 | 0.78 | 0.49-1.23 |
| 21 | 75 (9.2%) | 100 (12.3%) | χ2=3.47 | 0.0624 | 0.74 | 0.54-1.02 |
| 21.2 | 2 (0.3%) | 0 (0.0%) | exact test | 0.2450 | ---- | ---- |
| 22 | 146 (17.9%) | 136 (16.4%) | χ2=0.70 | 0.4044 | 1.11 | 0.86-1.44 |
| 22.2 | 6 (0.7%) | 4 (0.5%) | exact test | 0.5059 | 1.53 | 0.43-5.45 |
| 23 | 176 (21.6%) | 223 (16.9%) | χ2=6.15 | 0.0131 | 0.75 | 0.60-0.94 |
| 23.2 | 4 (0.5%) | 6 (0.7%) | exact test | 0.5461 | 0.68 | 0.19-2.41 |
| 24 | 141 (17.3%) | 140 (16.9%) | χ2=0.06 | 0.8067 | 1.03 | 0.80-1.33 |
| 24.2 | 6 (0.7%) | 8 (1.0%) | χ2=0.25 | 0.6169 | 0.76 | 0.26-2.21 |
| 25 | 98 (12.0%) | 76 (9.2%) | χ2=3.61 | 0.0575 | 1.38 | 0.99-1.86 |
| 25.2 | 2 (0.3%) | 0 (0.0%) | exact test | 0.2450 | ---- | ---- |
| 26 | 38 (4.7) | 40 (4.8%) | χ2=0.02 | 0.8855 | 0.97 | 0.61-1.52 |
| 27 | 8 (1.0%) | 5 (0.6%) | χ2=0.76 | 0.3840 | 1.64 | 0.53-5.03 |
| 28 | 4 (0.5%) | 0 (0.0%) | exact test | 0.0599 | ---- | ---- |
| 29 | 0 (0.0%) | 2 (0.2%) | exact test | 0.4997 | ---- | ---- |
| Total | 814 (100%) | 830 (100%) | ---- | ---- | ---- | ---- |
a 2x20 χ2=38.98, p=0.0044
b p<0.0025 was considered statistically significant