Level 1a	The time until return to activity does not differ significantly between laparoscopic and open repairs
Level 1b	Laparoscopic incisional hernia repair is associated with a faster return to work than open repair
	Suture fixation is associated with a faster return to work after laparaoscopic repair than after tacks fixation
Level 2b	Return to activity after laparoscopic incisional and ventral hernia repair does not differ significantly between suture and tacks fixations
Level 4	The time until smokers and patients with hard physical work demands can return to work is significantly longer