Table 3.

Comparison of groups two by two in the interval of 0 to 2 hours

Group I	Group J	Mean Difference (I-J)	Standard Error	P-value	Confidence Interval
					Lower Bound	Upper Bound
ZnO	CuO	-92.40	18.48	0.000*	-141.13	-43.66
	ZnO-CuO	-90.10	18.48	0.000*	-138.83	-41.36
	Control	17.41	21.20	0.844	-38.48	73.31
CuO	ZnO-CuO	2.30	17.99	0.999	-45.13	49.73
	Control	109.81	20.77	0.000*	55.04	164.58
ZnO-CuO	Control	107.51	20.77	0.000*	52.74	162.28

*Significant p< 0.001