Table 3: Frequency of SNP alleles in different groups.
| Groups | Polymorphism | df* | P.value | |||
| AA | GA | GG | 2 | 0.0001** | ||
| Healthy | Frequency | 12 | 0 | 48 | ||
| Percent | 20% | 0% | 80% | |||
| Chronic hepatitis B | Frequency | 4 | 12 | 44 | ||
| Percent | 6.7% | 20% | 73.3% | |||
*df: Degree of freedom; **Significant statistical difference.