highly significantp < 0.001
The significance level for the calculations was set as follows: significant, p < 0.05; very significant, p < 0.01; highly significant, p < 0.001; and extremely significant p < 0.0001 using letters from a to d. 3.
The significance level for the calculations was set as follows: significant, p < 0.05; very significant, p < 0.01; highly significant, p < 0.001; and extremely significant p < 0.0001 using letters from a to d. 3.