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. 2016 Dec 20;2016(12):CD009840. doi: 10.1002/14651858.CD009840.pub2

Dennis 2005.

Methods Parallel randomised controlled clinical trial
Randomisation ratio: 1:1
Superiority design
Participants 4023 participants; N = 2016 intervention (47% female; mean age 71 (SD 12)); N = 2007 usual care (46% female; mean age 71 (SD 13))
Inclusion criteria: people admitted with recent stroke, (first or recurrent stroke no more than 7 days before admission), if they passed swallow screen, the responsible clinician was uncertain whether to use oral nutritional supplements and the participant or relative consented to enrolment
Exclusion criteria: subarachnoid haemorrhage
Diagnostic criteria: stroke patients
Interventions Intervention group received normal hospital diet plus oral protein energy supplements (360 mL) prescribed on drug administration charts; usual care received normal hospital diet until discharge
Number of trial centres: 125 hospitals in 15 different countries
Treatment before trial: none
Outcomes Outcomes reported in abstract of publication: death, poor outcome (modified Rankin scale grade 3‐5)
Study details Run‐in period: not stated
Was trial terminated early: no
Publication details Language of publication: English
Funding: commercial/other funding Health Technology Assessment Board of NHS Research and Development in the UK, the Stroke Association, the Chief Scientist Office of the Scottish Executive, and Chest, Heart and Stroke, Scotland
Publication status: peer review journal
Stated aim for study Quote from publication: "to establish whether routine oral nutritional supplements improve outcome after stroke"
Notes The FOOD (feed or ordinary diet) trials consisted of three RCTs, sharing the same randomisation, data collection, and follow‐up systems, allowed co‐enrolment, and aimed to compare the outcomes of stroke patients in hospital. Dysphagic patients were enrolled into one or both of two trials: (1) early enteral tube feeding versus avoidance of tube feeding for at least 7 days; and (2) tube feeding via percutaneous endoscopic gastrostomy versus nasogastric tube. For this systematic review we describe the outcomes of participants who were able to swallow
Risk of bias
Bias Authors' judgement Support for judgement
Random sequence generation (selection bias) Low risk Quote from publication: "the computer allocated the feeding regimen". Also, "A computer generated minimisation algorithm" was used
Allocation concealment (selection bias) Low risk Quote from publication: "the computer allocated the feeding regimen"
Comment: central allocation method ensured treatment allocation was concealed until intervention was given
Blinding of participants and personnel (performance bias) 
 All outcomes Unclear risk Quote from publication: "Neither the randomising clinician, the clinical team, nor patients were unaware of treatment allocation; doing so would have been very difficult"
Blinding of outcome assessment (detection bias) 
 All outcomes High risk Quote from publication: "Follow‐up was masked to treatment allocation (except when patients or carers inadvertently divulged it to an interviewer, which was unusual but not systematically recorded)"
Incomplete outcome data (attrition bias) 
 All outcomes Low risk Comment: study attrition presented in a figure and all randomised participants accounted for
Selective reporting (reporting bias) Low risk Comment: all of the outcomes specified were reported
Other bias Unclear risk Comment: insufficient information to permit judgement of ‘Low risk’ or ‘High risk’