TABLE 1.

Modified ventral hernia working group grading system, adapted from Kanters et al. [2].

Grade 1: Low risk	Grade 2: Comorbidities	Grade 3: Contamination
SSO: 14%	SSO: 27%	SSO: 46%
No history of wound infection	Smoking	A Clean-contaminated
	Obesity	B Contaminated
	Diabetes mellitus	C Active infection
	COPD
	History of wound infection

Abbreviations: SSO, surgical site occurrence; COPD, chronic obstructive pulmonary disease.