Table 4 Comparison of anxiety levels between the two groups after taking second impression using Mann Whitney U test.
From: Effect of Low-level LASER Therapy on P6 Acupoint to Control Gag Reflex in Children: A Clinical Trial
A2 | |||||
|---|---|---|---|---|---|
Group | n | Mean rank | Mann Whitney U | Z | p |
A | 20 | 12.30 | 36.000 | −4.683 | 0.001 |
B | 20 | 28.70 |