Statistical Analyses
Continuous variables were presented as mean ± SD, and the differences of
comparison depended on one-way analysis of variance (ANOVA). The
comparison of the baseline characteristics and treatment outcomes
between two treatment groups were conducted using Mann-Whitney U Test. A
p value of < 0.05 was considered statistically significant.
The SPSS software version 21.0 ( IBM Corp., NY, USA) was used for data
analysis.