Study	Reason for exclusion
EUCTR 2009	Not clear what interventions are used
Farges 1994	Not a comparison of interest for this review
Glanemann 1998	Not a comparison of interest for this review
Iesari 2018	Not a comparison of interest for this review
Ismail 1995	Not a comparison of interest for this review
ISRCTN 2010	Not clear what interventions are used
Jain 2002	Not a comparison of interest for this review
Klupp 1998	Not a comparison of interest for this review
Langrehr 1998	Not a comparison of interest for this review
Lerut 2008	Both groups received glucocorticosteroids; the duration of treatment was different between the two groups
Liu 2013	Retrospective study where patients were randomly selected
Margarit 2005	Both groups received glucocorticosteroids; the duration of treatment was different between the two groups
NCT 2005	A completed randomised clinical trial with no publication linked; it was not clear whether both groups received thymoglobulin and glucocorticosteroids
NCT 2006b	A completed randomised clinical trial with no publication linked; it was not clear whether both groups received the same interventions, although the title suggests that they received different interventions
NCT 2007	Not a comparison of interest for this review
NCT 2017	Both groups received glucocorticosteroids; the type of steroids was different between the two groups
Neuberger 2009	Glucocorticosteroids were given according to local practice; therefore not clear if all participants received glucocorticosteroids
Pelletier 2005	A proportion of participants in both groups received basiliximab, which was not decided by random
Reding 1993	Not a comparison of interest for this review
Russell 2016	The other immunosuppressive drugs were different in the two groups, i.e. the co‐interventions were different in the two groups
Saliba 2016	Both groups received glucocorticosteroids; the duration of treatment was different between the two groups
Samuel 1998	Not a comparison of interest for this review
Serrano 2002	Not a comparison of interest for this review
Trunecka 2015	Optional glucocorticosteroids were given to the participants; since glucocorticosteroids is one of the interventions of interest for this network meta‐analysis and the decision to give glucocorticosteroids was not decided at random, we excluded this study
Turner 2006	There is mention about use or not use of glucocorticosteroids at the time of induction of anaesthesia; there is no information about the subsequent immunosuppressive regimen, which might have included steroids in both groups
Tzakis 2004	Not a randomised clinical trial