What were the main 2-3 findings of the study? What were the reported p-values of the study's main findings?Were these results statistically significant?

16b) What was the "actual" or "real" amount of difference or association found? (What is the absolute (not proportional) difference in results among study groups? - subtract one raw number from the other).

Is this actual amount of any practical clinical significance? Why or why not? Explain briefly. ( Please do not discuss about challenges to validity here. Just discuss the clinical significance of the differences found in 16-b, without regard to study design, validity, bias, etc.)

https://doi.org/10.1590/1807-3107bor-2020.vol34.0057