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

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

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
  1. 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.