Plasmodium falciparum isolates from southern Ghana exhibit polymorphisms in the SERCA-type PfATPase6 though sensitive to artesunate in vitro

Table 3 Pearson's correlation coefficient (r) between IC₅₀ values of the anti-malaria drugs

Anti-malaria drugs	Pearson's r	Interpretation	p value
artesunate vs. amodiaquine	0.515	Large	< 0.001
artesunate vs. chloroquine	0.366	Medium	< 0.001
artesunate vs. quinine	0.281	Small	< 0.001
amodiaquine vs. chloroquine	0.308	Medium	< 0.005
amodiaquine vs. quinine	0.188	Small	< 0.001
chloroquine vs. quinine	0.144	Small	< 0.001

Significance level was set at 0.05, while the range for interpretation of correlation coefficient is as follows; None, 0.0 - 0.09; Small, 0.1 - 0.3; Medium, 0.3 0.5; Large, 0.5 - 1.0.

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