Table 2. Statistical correlations between the stained cells counted by flow cytometry and the cultivable cells determined by plate counts.

	Spearman coefficient		Linear regression
	ρ	p-value
log(green-stained cells) = f (log (CFU/mL))	0.85	2•10−16	y = 0.97 x
log(red-stained cells) = f (log (loss of CFU/mL))	0.46	1•10−5	y = 0.90 x
log(red-stained+lysed cells) = f (log (loss of CFU/mL))	0.36	1•10−3	y = 1.04 x

Green-stained cells are compared to cultivable cells. Red-stained cells and cells missing in the total number of cells before and after treatment (lysed cells) are compared to lost cultivable cells.