TABLE 3.

Correlation coefficients of resistance to different drugs used to treat Escherichia coli infection in a general hospital in the United States^a

Drug	Correlation coefficientb
	AMP	SAM	FEP	FOX	CAZ	CRO	CIP	GEN	IPM	LVX	NIT	SXT
AMK	−0.009	0.012	0.084***	0.032	0.023	0.012	0.050**	0.009	0.101***	0.050**	−0.017	0.002
AMP		0.540***	0.096***	0.130***	0.132***	0.177***	0.130***	0.144***	−0.025	0.132***	−0.128***	0.207***
SAM			0.138***	0.218***	0.188***	0.137***	0.117***	0.221***	0.010	0.119***	−0.083***	0.100***
FEP				0.197***	0.622***	0.531***	0.263***	0.148***	0.172***	0.263***	0.074***	0.072***
FOX					0.334***	0.352***	0.281***	0.071***	0.103***	0.289***	0.086***	−0.022
CAZ						0.728***	0.273***	0.142***	0.161***	0.273***	0.084***	0.058**
CRO							0.374***	0.121***	0.113***	0.376***	0.080***	0.124***
CIP								0.302***	0.054**	0.994***	0.037	0.176***
GEN									0.003	0.299***	0.028	0.202***
IPM										0.054**	−0.007	0.032
LVX											0.039*	0.178***
NIT												0.027

^aData source, WHONET (n = 2,731).

^b***, P < 0.001; **, P < 0.01; *, P < 0.1.