. 2013 Mar;79(5):1755–1756. doi: 10.1128/AEM.03605-12

Table 2.

Stepwise multiple-liner regression analysis of soil properties and the survival time of Escherichia coli O157:H7 in soils^a

Regression equation	R²	F value	Parameter or T value of the partial regression coefficient
Regression equation	R²	F value	Parameter	T value
t_d = 75.017 − 5.807 × pH − 0.386 × OC − 0.328 × B/F	0.987	273.868^c	Constant	21.953^c
			pH	−14.538^c
			OC	−24.238^c
			B/F	−2.373^b

t_d (survival time), time needed to reach the detection limit, 100 CFU per gram (dry weight) of soil; OC, organic carbon; B/F, the ratio of bacterial PLFAs to fungal PLFAs.

Correlation is significant at the 0.05 probability level.

Correlation is significant at the 0.001 probability level.