Table 2.

Studies characteristics: Studies setting and feature

Study	Year	Country	Center	Prospective	Consecutive	HRQL as primaryendpoint	PreoperativeHRQLassessment	SF36	OES18 /OES24	QLQ C30	Populationbased study
McLarty et al[54]	1997	United States	Mayo Clinic, Rochester MI	No	Yes	No	No	Yes	No	No	No
De Boer et al[53]	2000	Netherlands	Academic Medical Centre, Amsterdam	No	No	Yes	No	Yes	No	No	No
Headrick et al[49]	2002	United States	Mayo Clinic, Rochester MI	No	Yes	No	No	Yes	No	No	No
Cense et al[52]	2004	Netherlands	Academic Medical Centre, Amsterdam	No	No	Yes	No	Yes	No	No	No
Moraca et al[50]	2006	United States	Virginia Mason Medical Centre, Seattle	No	Yes	No	No	Yes	No	No	No
Reynolds et al[55]	2006	Ireland	St James's Hospital, Dublin	Yes	Yes	Yes	Yes	No	No	Yes	No
Avery et al[56]	2007	United Kingdom	University of Bristol, Bristol	Yes	Yes	Yes	Yes	No	Yes	Yes	No
van Meerten et al[57]	2008	Netherlands	Erasmus University, Rotterdam	Yes	Yes	Yes	Yes	No	Yes	Yes	No
Wang et al[59]	2009	China	Fudan University, Shanghai	Yes	Yes	Yes	Yes	No	Yes	Yes	No
Parameswaran et al[58]	2010	United Kingdom	Royal Devon and Exeter NHS Trust, Exeter	Yes	Yes	Yes	Yes	No	Yes	Yes	No
Viklund et al[45]	2005	Sweden	Karolinska Institute, Stockholm	Yes	Yes	Yes	No	No	Yes	Yes	Yes
Rutegard et al[46]	2008	Sweden	Karolinska Institute, Stockholm	Yes	No	Yes	No	No	Yes	Yes	Yes
Rutegard et al[47]	2008	Sweden	Karolinska Institute, Stockholm	Yes	No	Yes	No	No	Yes	Yes	Yes
Olsen et al[60]	2005	Sweden	Sahlgrenska University Hospital, Goteborg	No	Yes	No	No	No	Yes	Yes	No
Lagergren et al[61]	2007	United Kingdom	University of Bristol, Bristol	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes
Djarv et al[62]	2008	Sweden	Karolinska Institute, Stockholm	Yes	Yes	Yes	No	No	Yes	Yes	Yes
Courrech Staal et al[63]	2010	Netherlands	Netherlands Cancer Institute, Amsterdam	Yes	Yes	Yes	No	No	Yes	Yes	No
Blazeby et al[64]	1995	United Kingdom	University of Bristol, Bristol	No	Yes	Yes	No	No	No	Yes	No
Ariga et al[65]	2009	Japan	University of Yamaga, Yamaga	Yes	Yes	No	No	No	Yes	Yes	No
Schneider et al[48]	2010	Germany	University of Heidelberg, Heidelberg	Yes	Yes	Yes	Yes	No	Yes	Yes	No
Rosmolen et al[51]	2010	Netherlands	Academic Medical Center, Amsterdam	No	Yes	Yes	No	Yes	Yes	Yes	No

The 21 studies included in the analysis are listed according their aim and then chronologically. HRQL: Health-related quality of life; SF36: Short form-36.