Table 2.

Spearman correlation coefficients of increased (≥2) Pfmdr1 copy number and in vitro resistance

Molecule	Spearman correlation coefficient (r)	P value
Chloroquine	0.06	0.17
Quinine	0.30	<0.0001
Mefloquine	0.64	<0.0001
Halofantrine	0.47	<0.0001
Artemether	0.34	<0.0001
Atovaquone	−0.04	0.46
Amodiaquine	0.11	0.05
Lumefantrine	0.32	<0.0001