2.4 Statistical analysis
SPSS 24.0 software was used for statistical analysis. Genetic balance
was analyzed by Hardy-Weinberg equilibrium test. It was considered that
P> 0.05 indicated that the genotype distribution conformed
to the HW balance; Independent
sample t test and chi-square test were performed for statistical
analysis of clinical data and experimental results. P <0.05
represents statistical significance. The 95% confidence interval (CI)
and odds ratio (OR) were used for risk analysis.