. 2021 Dec 2;7(12):e08529. doi: 10.1016/j.heliyon.2021.e08529

Table 3.

Bivariate analysis for the statistical differences between the two treatment groups on the surgical site infections. N= 144.

	Insulin Treatment		Test Statistic (The chi-square test or Fisher's test)	p-value
	Conventional n = 72	Tight n = 72	Test Statistic (The chi-square test or Fisher's test)	p-value
Developed SSIs
No	66 (91.7%)	68 (94.4%)	χ2 (1) = 0.43	0.512
Yes	6 (8.3%)	4 (5.6%)
SSWI	1 (1.4%)	0 (0%)	χ2 (1) <0.01	0.999
DSWI	3 (4.2%)	4 (5.6%)	χ2 (1) <0.01	0.999
SHWI	2 (2.8%)	1 (1.4%)^∗	χ2 (1) <0.01	0.999
DHWI	0 (0%)	1 (1.4%)^∗	χ2 (1) <0.01	0.999

Notes: SSIs= surgical site infections; SSWI= superficial sternal wound infection; DSWI= deep sternal wound infection; SHWI= superficial harvesting wound infection; DHWI= deep harvesting wound infection.

^∗

Subjects developed DSWI and additional types of either SHWI or DHWI.