2.14. Data extraction and statistical analysis
Data will be analyzed using the Statistical Package for Social Science software, version 18.0 (SPSS Version 20.0), where descriptive and inferential analyses will be carried out, and results will be presented through tables, charts and figures. To evaluate variables, the Chi-square test (χ²) or Fisher test or ANOVA will be used. Other statistical tests that may be necessary will also be used. Significance level of 5% (