Study	Reason for exclusion
Allen 2009	Comparison not considered by this review
Baxendale 2000	The trial only included temperature as an outcome
Berti 1997	The trial only included temperature as an outcome
Borms 1994	The trial only included temperature as an outcome
Bourke 1984	Comparison not considered by this review
Buggy 1994	The trial only included temperature as an outcome
Cobbe 2012	The trial was performed in healthy voluntaries
De Bernardis 2009	The trial only included temperature as an outcome
Dyer 1986	Comparison not considered by this review
Erickson 1991	Comparison not considered by this review
Fanelli 2009	Comparison not considered by this review
Farley 2004	Comparison not considered by this review
Fleisher 1998	The trial did not report on outcomes of interest for this review
Frank 1995	The trial only included temperature, neuroendocrine response and blood pressure as outcomes
Grocott 2004	Comparison not considered by this review
Harper 2007	The trial only included temperature as an outcome
Hindsholm 1992	Comparison not considered by this review
Hoyt 1993	Comparison not considered by this review
Hynson 1992	The trial only included temperature as an outcome
Insler 2008	The trial only included temperature as an outcome
Janicki 2002	The trial only included temperature as an outcome
Joachimsson 1987	The trial only included temperature as an outcome
Kamitani 1999	The trial only included temperature as an outcome
Karayan 1996	The trial only included temperature as an outcome
Kim 2006	The trial only included temperature as an outcome
Kongsayreepong 2002	The study was performed in neonates
Kurz 1993	The trial only included temperature as an outcome
Lenhardt 1997	The trial only included temperature as an outcome
Matsuzaki 2003	The trial did not report on outcomes of interest for this review
Motamed 2000	Comparison not considered by this review
Murat 1994	The study population were children + the trial only included temperature as an outcome
Müller 1993	The trial only included temperature as an outcome
Müller 1995	The trial only included temperature as an outcome
Nesher 2003	The trial only included temperature and lab parameters as an outcome
Onik 1993	The trial only included temperature as an outcome
Ouellette 1993	The trial only included temperature as an outcome
Patel 1997	Comparison not considered by this review
Radel 1986	The trial only included temperature as an outcome
Radford 1979	The trial only included temperature as an outcome
Rein 2007	The trial only included temperature as an outcome
Russell 1995	The trial only included temperature as an outcome
Salazar 2011	The trial did not include any relevant outcome included in this review
Saldanha 2001	Participants are rewarmed if hypothermic
Sessler 1988	Comparison not considered by this review
Severens 2007	The intervention was applied postoperatively (rewarming)
Sheng 2003	The trial only included temperature as an outcome
Smith 1994	It reports shivering only by graphics (no raw data available)
Smith 2006	Participants in the control group (routine care) received intraoperative convective or IV fluid warming or both at the discretion of the anaesthesiologist
Summers 1990	The intervention was applied postoperatively
Tollofsrud 1984	The trial only included temperature as an outcome
Wagner 2006	Quasi‐experimental design
Whitney 1990	The trial only included temperature as an outcome
Wong 2004	The trial only included temperature as an outcome