Table 4.

Frequency of biofilm formation changes in clinical isolates of P. aeruginosa in the presence of 1/2 MIC and 1/4 MIC concentrations of gentamicin

Percentage	Frequency	Type of changes
% 31.3	31 Isolates	Significant increase in 1/2 MIC and 1/4 MIC
% 46.4	46 isolates	Significant decrease in 1/2 MIC and 1/4 MIC
% 5	5 isolates	Significant increase in 1/2 MIC, Significant decrease in 1/4 MIC
% 3	3 isolates	Significant decrease in 1/2 MIC, significant increase in 1/4 MIC
% 6	6 isolates	Significant increase in 1/2 MIC, No Significant change in 1/4 MIC
% 4	4 isolates	No Significant change in 1/2 MIC, significant increase in 1/4 MIC
% 3	3 isolates	Significant decrease in 1/2 MIC, No Significant change in 1/4 MIC
% 1	1 isolate	No Significant change in 1/2 MIC and 1/4 MIC