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Multiple comparisons of all four groups
| Study groups | Multiple comparisons (Mann Whitney Test) |
|---|---|
| A & B | (P=0.008*) S |
| A & C | (P=0.008*) S |
| A & D | (P=0.009*) S |
| B & C | (P=0.008*) S |
| B & D | (P=0.151) NS |
| C & D | (P=0.009*) S |
**P<0.001, HS (highly significant). *P<0.05, S (significant). P>0.05, NS (not significant)
