Table 1.

Summary statistics of the number of sessile cells recovered from membranes after biofilm formation on ALI and LLI model surfaces

	ALI			LLI
	Detached	Attached	Total	Detached	Attached	Total
Mean	6.06	7.19	7.24	6.23	6.94	7.15
SD	0.99	0.87	0.87	0.98	0.95	0.91
SEM	0.24	0.20	0.20	0.23	0.22	0.22

Detached = cells washed off by rinsing; attached = cells remaining on the membrane after washing and detached from the membrane after sonication; total = the sum of detached and attached. The mean value, standard deviation (SD), and standard error of mean results (SEM) are expressed as Log(CFU/mL) of n = 18