Table 3 Spearman’s correlation analyses between biofilm production and the carriage of specific virulence gene

cna (+)

P > 0.05

P > 0.05

rho = 0.250, P = 0.028

fib (+)

rho = 0.234, P = 0.006

P > 0.05

rho = 0.274, P = 0.016

seb (+)

P > 0.05

P > 0.05

rho = −0.245, P = 0.031

sed (+)

P > 0.05

P > 0.05

rho = −0.262, P = 0.001

sei (+)

rho = −0.246, P = 0.004

rho = −0.387, P = 0.002

P > 0.05

sem (+)

rho = −0.224, P = 0.008

rho = −0.268, P = 0.039

P > 0.05

seo (+)

rho = −0.263, P = 0.002

rho = −0.360, P = 0.005

P > 0.05

hlgv (+)

rho = 0.235, P = 0.006

P > 0.05

rho = 0.240, P = 0.036

lukED (+)

rho = 0.283, P = 0.001

P > 0.05

rho = 0.421, P < 0.001

eta (+)

P > 0.05

P > 0.05

rho = 0.263, P = 0.021