Table 3.

Pearson correlation between the amount of biofilm formation and the expression of related genes

	RB	VIM	IMP	OprD2	algD	pslA	lasR
RB	1	0.862	0.373	-0.3548	0.178	0.223	-0.001
VIM		1	0.761	0.287	0.319	0.1321	0.007
IMP			1	-0.811		0.0505	0.471
OprD2				1	0.3155	0.683	0.214
algD					1	0.4772	0.691
pslA						1	0.935
lasR							1

Significant correlations were found between biofilm volume and VIM (P < 0.01), IMP and VIM (P < 0.05), OprD2 and IMP (P < 0.05), pslA and OprD2 (P < 0.01) and lasR and pslA (P < 0.01).