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Cochrane Central Register of Controlled Trials (2005, issue 2); Medline (June 2005); EMBASE/Excerpta Medica, CINAHL, BIOSIS, and CAB abstracts (March 2004); HealthStar (March 2001); nutrition journals; reference lists of relevant articles; and manufacturers of nutritional supplements.
Study selection and assessment:
randomised and quasi-randomised controlled trials that evaluated use of an oral protein or energy supplement for ⩾1 week compared with placebo or control treatment in elderly people (average age ⩾65 y) in hospital, long term care, or the community. Randomised controlled trials (RCTs) involving patients in critical care or recovering from cancer treatment were excluded. 2 reviewers independently assessed …