. 2019 May 27;9:7854. doi: 10.1038/s41598-019-44153-y

Table 2.

Synthesis of the most relevant correlations in the data obtained in this study.

Variable	Variable	Pearson’s correlation factor	P value
Flap necrosis rate on the 3^rd postoperative dayFlap necrosis rate on the 7^th postoperative day	Flap necrosis rate on the 7^th day	0.922	p < 0.001
	Average number of bacteria per SEM field	0.609	p < 0.001
	Percentage of SEM fields with biofilm	0.596	p < 0.001
	Percentage of SEM fields with planktonic bacteria	−0.409	p = 0.004
	Percentage of SEM fields without bacteria	−0.426	p = 0.003
	Percentage of SEM fields without biofilm	−0.681	p < 0.001
	P. aeruginosa counts on the 3^rd postoperative day determined by culture of flap biopsies	0.287	p = 0.041
	Average number of bacteria per SEM field	0.626	p < 0.001
	Percentage of SEM fields with biofilm	0.563	p = 0.001
	Percentage of SEM fields with planktonic bacteria	−0.379	p = 0.03
	Percentage of SEM fields without bacteria	−0.462	p = 0.007
	Percentage of SEM fields without biofilm	−0.674	p < 0.001
	P. aeruginosa counts on the 3^rd postoperative day determined by culture of flap biopsies	0.395	p = 0.016
Average number of bacteria per SEM field	Average number of leucocytes per SEM field	0.276	p = 0.041
Average number of bacteria per SEM field	Average number of phagocytes per SEM field	0.401	p = 0.002

SEM, scanning electron microscopy.