Zhu 2012a.

Methods	Randomised clinical trial, China
Participants	97 hospitalised adults admitted with stroke, at nutritional risk due to stroke Male:Female = 56:41 Mean age = 72 years Exclusion criteria: None
Interventions	Experimental group 1: Received both enteral and parenteral supplements.The energy was 84 ‐ 105 kj/kg/day, and increased to the target volume 126 ‐ 147 kj/kg/day, based on participant's recovery condition. Whole protein supplements (6.3 kJ/ml) were given through nasogastric tube, and the sugar, fat and protein were provided through vein tube.(n = 33) Experimental group 2: Received only enteral supplements. The energy was 84 ‐ 105 kj/kg/day, and increased to the target volume 126 ‐ 147 kj/kg/day based on participant's recovery condition. All the nutrition was provided through the nasogastric tube. (n = 32) Control group: The nutrition (6.3 kJ/ml)was given through nasogastric tube under the control of a specialist nurse(n = 32)
Outcomes	Triceps skinfold thickness, arm muscle circumference, haemoglobin, albumin, prealbumin, triglyceride, incidence rate of malnutrition; infection rate, mortality, NIHSS, Barthel Index
Study dates	Not stated
Notes	Same as Zhu 2012b, but with experimental group 1 vs control group. We found no contact information for the authors.
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	Not described
Allocation concealment (selection bias)	Unclear risk	Not described
Blinding of participants and personnel (performance bias) All outcomes	High risk	The 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)	Low risk	No protocol could be obtained but the trial did report on all‐cause mortality and 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.