Wang 2013a.

Methods	Randomised clinical trial, China
Participants	48 hospitalised adults with colorectal cancer, at nutritional risk due to major surgery Male:Female = 27:21 Age range = 37 ‐ 73 years Exclusion criteria: Older than 80, received chemotherapy prior to the surgery, serious organ function disorder, low rectal cancer and having abdominoperineal resection, palliative operation, or emergency operation, severely obese, fatty or malnourished, metabolic and endocrine diseases such as hyperthyroidism 7, having Intestinal obstruction, perforation, or intestinal necrosis
Interventions	Experimental group: Enteral nutrition: 500 ml Jevity each day was taken orally from the 1st day of admission to the hospital (500 ml Jevity contained 2196.6 KJ, protein 20 g, fat 17 g, carbohydrate 70 g and dietary fibre 5.3 g). A nasal tube was placed after the surgery, and water was given at the 1st postoperative day, and if there was no discomfort, 500 ml Jevity and water were administered on the 2nd postoperative day. From the 3rd day on, 1000 ml Jevity was given with certain nutrition liquid diet until hospital discharge. If the participants had symptoms like nausea, vomiting or abdominal distention, the dose of Jevity would be decreased or changed to another kind of nutrient.(n = 24) Control group: Standard usual care. Participants were administered venous transfusion after the surgery, and water was given after anal‐exsufflation. If there was no discomfort, the volume of water would be increased and a liquid diet considered. (n = 24)
Outcomes	Postoperative exhaust time, hospital stay, treatment charge, bio markers postoperative complications such as pulmonary infection, the completion rate of nutrition agents
Study dates	Not stated
Notes	We contacted the authors on 09th December 2015 by phone and by email: ngds0538@sina.com. We received no reply.
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	The randomisation method was random table.
Allocation concealment (selection bias)	Unclear risk	Not described
Blinding of participants and personnel (performance bias) All outcomes	High risk	Participants and personnel were not blinded.
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	Not described
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	The number of participants with incomplete data was not reported.
Selective reporting (reporting bias)	Unclear risk	No protocol could be obtained and the trial did not report on all‐cause mortality or serious adverse events.
For‐profit bias	Unclear risk	It was unclear how the trial was funded.
Other bias	Low risk	The trial appeared to be free of other components that could put it at risk of bias.