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| Group | n | Mean | SD | p- value |
|---|---|---|---|---|
| Group I | 20 | 24.679# | 6.400 | 0.005 |
| Group II | 20 | 17.177# | 8.349 | |
| Group III | 20 | 14.694# | 6.688 | |
| Group IV | 20 | 20.872# | 9.869 |
Kruskal-Wallis test, p<0.05; considered statistically significant.
# Pairs are significant different from each other pair.
