Table 4.

Statistical Analysis of the Percent of Viable MDA-MB-231cells for Different Concentrations of Arctium Lappa Root Extract after Different Incubation Times

	Arctium lappa	root extract	Concentrations	(µg/ml) on	MDA-MB-231 cells
Treatment time	0	0.1	0.5	1	5	10
24 H	99.80±0.01	98.56±0.00	86.31±0.01	78.78±0.01	65.87±0.01	47.75±0.01
48 H	99.22±0.03	93.86±0.03	83.06±0.04	70.96±0.03	55.39±0.02	35.70±0.02
72 H	98.64±0.03	87.48±0.02	81.91±0.02	60.39±0.02	47.56±0.01	28.72±0.01
P-value*		0.14	0.0003	0.005	0.001	0.0003

^*Statistical significance was attained when (P-value < 0.05)