Spss statistical software package 17

Morpho-physiological data were subjected to one-way ANOVA using the SPSS statistical software package 17.0 (SPSS Inc., Chicago, IL, USA). Duncan’s test was applied to assess the significant differences (P-value < 0.05) between treatments.

Statistical analysis was carried out using the SPSS statistical software package 17.0.(Chicago, IL, USA). The normality of the distributions was assessed in accordance with the Kolmogorov–Smirnov test. The t-test, χ2-test and the Mann–Whitney U-test were used to analyze differences between the groups. The relationships between several variables, mainly genetic polymorphisms with BP were verified by Spearman correlation analysis. The impacts of genotypes and other analyzed variables on BP were tested using multivariate logistic regression. Deviation from Hardy-Weinberg equilibrium was assessed by a χ2-test. The significance level for all tests was p ≤ 0.05.

Statistical analysis was performed using SPSS statistical software package 17.0 (SPSS, Chicago, IL, USA). Normal distribution of the data was determined using the Shapiro-Wilk test. A one-way analysis of variance (ANOVA) followed by a post hoc (Turkey’s multiple-comparison test) was used for data between multiple groups that were normally distributed, and the Kruskal-Wallis H-test was used for data that were not normally distributed. Student's t test (normally) or Mann-Whitney U test (not normally) was used for comparing differences between two groups. Results are expressed as means ± standard errors of the means (SEM), with statistical significance set at 0.05, 0.01, or 0.001.
The clinical study was approved by the Ethics Committee of Chinese Clinical Trial Registry (registration number ChiECRCT-000011).