Table 2.

Expression levels of pmrA, pmrB, and pmrC in colistin-susceptible and colistin-resistant isolates.

	Colistin susceptibility				P value
	Colistin sensitive		Colistin resistant
	Mean	SEM	Mean	SEM
RQ of pmrA	4.56	2.74	46.84	13.78	< 0.001
RQ of pmrB	5.25	3.14	64.31	16.52	0.001
RQ of pmrC	19.63	16.55	26.69	12.32	0.448

RQ relative quantification, SEM standard error of mean.