Table 2.

Correlation between the effects of aqueous-ethanolic extract from R. damascene and isoprenaline on heart rate and contractility of isolated guinea pig heart with concentrations in three groups of experiments

Groups		Extract		Extract + An.: antagonist.		Isoprenaline		Isoprenaline + An.: antagonist
		R	P value	R	P value	r	P value	r	p value
Group 1	HR	0.4	p < 0.005	0.6	p < 0.001	0.7	p < 0.001	0.7	p < 0.001
	Cont	0.4	p < 0.01	0.6	p < 0.001	0.3	p < 0.05	0.7	p < 0.001
Group 2	HR	0.6	p < 0.001	0.6	p < 0.001	0.7	p < 0.001	0.7	p < 0.001
	Cont	0.7	p < 0.001	0.7	p < 0.001	0.3	p < 0.05	0.6	p < 0.001
Group 3	HR			0.5	p < 0.001
	Cont			0.5	p < 0.001

For abbreviations see Table 1.