Table1.

Mean differences between postoperative pain and swelling in the secondary closure groups and controls. Data in centimeter except otherwise stated

Authors	Year	Surgical Technique	Mean Difference
			Pain	Swelling
Repraksitkul and Pairuchvej	1997	drain	0.30	4.4%
Cerqueira et al.	2004	drain	-	0.26
Pasqualini et al.	2005	mucosa excision	0.57	0.49
Chukwuneke et al.	2008	drain (rubber)	-	5.4%
Dander et al.	2010	mucosa excision	0.27	0.54
Osunde et al.	2011	single suture	0.50	0.20