extremely significantP value < 0.001
The difference between means is not significant (ns) or significant if P value < 0.05 (*), very significant if P value < 0.01 (**), extremely significant if P value < 0.001 (***) and P value < 0.0001 (****).
The difference between means is not significant (ns) or significant if P value < 0.05 (*), very significant if P value < 0.01 (**), extremely significant if P value < 0.001 (***) and P value < 0.0001 (****).