Camus 1996.

Methods	Single‐centre study in France
Participants	ASA I or II individuals undergoing major abdominal surgery lasting at least 3 hours under general anaesthesia; 18 patients
Interventions	Room temperature IV fluids (n = 9) Warmed IV fluids using hotline to 37°C (n = 9) Both groups also had an electric warming blanket
Outcomes	Core temperature (location measured is not stated) measured every 30 minutes for the first 2 hours, then hourly thereafter; shivering measured by a clinical observer as present or absent
Notes	Volume of fluid infused: control group 3.5 ± 0.3 litres over 380 ± 3 minutes, warmed group 3.6 ± 0.3 litres over 340 ± 24 minutes None were obese or febrile or had a history of endocrine disease
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	'Randomly assigned'
Allocation concealment (selection bias)	Unclear risk	Not described
Blinding of participants and personnel (performance bias) All outcomes	Unclear risk	Not described
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	Not described
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	No loss to follow‐up
Selective reporting (reporting bias)	Low risk	No evidence of this
Other bias	Low risk	None