The study will be conducted in accordance with the principles of Resolution 466/2012 of the Conselho Nacional de Saúde do Brasil3, ethical principles from the Declaration of Helsinki (and subsequent modifications) and Good Clinical Practice.
Statistical methodology:
Quantitative variables, or those that can reasonably be treated as such, are summarized using the minimum, maximum, measures of central tendency such as the mean and median & measures of dispersion such as the standard deviation (SD). Qualitative variables are summarized in the form of counts and percentages.
Significance level:
The null hypothesis will generally be rejected if a p-value less than 0.05 (5% significance level) is produced by the statistical procedure.