Statistical Analysis
The statistical analysis was performed using the Statistical Package for
Social Sciences (SPSS) 17.0 software program (SPSS Inc., Chicago, IL,
USA). Descriptive data were depicted as numbers and percentages, while
normally distributed data were presented as mean ± standard deviation
(SD). Comparisons between total knowledge score and categorical
demographic variables (gender, educational status, residence) were made
using the one-way analysis of variance (ANOVA) or Independent Student’s
t-test. A Pearson correlation coefficient analysis / Spearman’s rho
correlation was used to examine the association of two related
variables. A chi-squared test was used to compare two attributes, and a
p-value < 0.05 was considered statistically significant.