Effects of Lysozyme, Proteinase K, and Cephalosporins on Biofilm Formation by Clinical Isolates of Pseudomonas aeruginosa

Table 2

Comparative screening of P. aeruginosa clinical isolates for biofilm formation by the tube and tissue culture plate methods in the TSBG medium.

Biofilm classification (103 isolates)	Number of isolates (%) according to biofilm formation
	Tube method (qualitative method)	Tissue culture plate method (quantitative method)
Strongly adherent	28 (27.1%)	61 (59.2%)
Moderately adherent	23 (22.3%)	34 (33.0%)
Weakly adherent	33 (32.0%)	8 (7.7%)
Nonadherent	19 (18.4%)	0 (0%)