. 2020 Feb 10;2(3):acmi000095. doi: 10.1099/acmi.0.000095

Table 5.

Correlation matrix (Pearson’s correlation coefficients) among bacterial antibiotic resistance and heavy metal tolerance

Variables	Cm	Cf	Cx	Gm	Ip	Km	Nx	Pc	Tc	Hg²⁺	Cd²⁺	Cr⁶⁺	Cu²⁺
Cm	1
Cf	−0.647	1
Cx	0.405	0.362	1
Gm	−0.649	0.974*	0.421	1
Ip	−0.513	0.901*	0.355	0.864*	1
Km	−0.538	0.988*	0.502	0.977*	0.892*	1
Nx	−0.636	0.564	0.206	0.720	0.366	0.569	1
Pc	−0.400	0.885*	0.676	0.946*	0.764	0.937*	0.720	1
Tc	−0.205	0.707	0.785	0.818*	0.593	0.792	0.746	0.954*	1
Hg²⁺	0.302	−0.420	−0.200	−0.421	−0.178	−0.425	−0.356	−0.430	−0.340	1
Cd²⁺	−0.352	0.388	−0.340	0.182	0.464	0.293	−0.414	−0.056	−0.338	−0.026	1
Cr⁶⁺	−0.207	0.825*	0.510	0.713	0.839*	0.843*	0.037	0.679	0.494	−0.283	0.599	1
Cu²⁺	−0.416	0.869*	0.293	0.743	0.867*	0.848*	0.082	0.629	0.394	−0.293	0.727	0.967*	1

The antibiotic abbreviations are shown in Table 1.

*Values (Pearson’s R) are different from ‘zero’ with a significance level of P<0.05.