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Table 4

Pearson index of correlation between the CFU values both at 22 and at 37 °C

E.C.Kit 15%Kit 7%Kit 4%Man 15%Man 7%Man 4%Control
A 
CFU 22 °C 
 P. aeruginosa −0.13 0.38 0.27 −0.02 −0.13 −0.16 −0.09 −0.22 
 Enterococci −0.14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 
 Coliforms 0.00 0.00 0.23 0.18 0.00 0.34 0.31 −0.08 
E. coli 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 
CFU 37 °C 
P. aeruginosa −0.17 0.00 0.30 0.41 −0.14 −0.17 −0.10 −0.37 
 Enterococci −0.18 0.00 0.00 0.00 0.00 0.00 0.00 0.00 
 Coliforms 0.00 0.00 0.29 0.49 0.00 0.35 0.13 −0.15 
E. coli 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 
B1 
  Control   Control   
CFU 22 °C    CFU 37 °C    
WS no. 1 0.50    WS no. 1 0.96   
B2 
  Control   Control   
CFU 22 °C    CFU 37 °C    
WS no. 1 −0.44    WS no. 1 −0.33   
WS no. 2 0.22    WS no. 2 −0.33   
WS no. 3 0.50    WS no. 3 0.23   
E.C.Kit 15%Kit 7%Kit 4%Man 15%Man 7%Man 4%Control
A 
CFU 22 °C 
 P. aeruginosa −0.13 0.38 0.27 −0.02 −0.13 −0.16 −0.09 −0.22 
 Enterococci −0.14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 
 Coliforms 0.00 0.00 0.23 0.18 0.00 0.34 0.31 −0.08 
E. coli 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 
CFU 37 °C 
P. aeruginosa −0.17 0.00 0.30 0.41 −0.14 −0.17 −0.10 −0.37 
 Enterococci −0.18 0.00 0.00 0.00 0.00 0.00 0.00 0.00 
 Coliforms 0.00 0.00 0.29 0.49 0.00 0.35 0.13 −0.15 
E. coli 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 
B1 
  Control   Control   
CFU 22 °C    CFU 37 °C    
WS no. 1 0.50    WS no. 1 0.96   
B2 
  Control   Control   
CFU 22 °C    CFU 37 °C    
WS no. 1 −0.44    WS no. 1 −0.33   
WS no. 2 0.22    WS no. 2 −0.33   
WS no. 3 0.50    WS no. 3 0.23   

A: Pearson index of correlation values obtained by comparing the CFUs and the number of pathogens in A samples collected during the first experimental period.

B1: Pearson index of correlation values for CFUs in samples from the Control vs. those in samples from the WS no. 1 (current electrolytic cell). B2: the same index of correlation values obtained between the Control's samples data and those from the WSs no. 1, 2, and 3 (newly patented cell) samples.

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