2.3 Statistical analysis
The SPSS 21.0 statistical software package was used for all the
statistical analysis,Continuous variables were expressed as mean ±
standard deviation(SD)and categorical variables were presented as
frequent count and percentages. The comparison of inter-group analysis
of BP levels and HR was performed by unpaired two-tailed t-test.
Two-tailed P < 0.05 was treated as statistically significant.