TABLE 2.
Judgment made against each quality criterion of the AMSTAR methodological checklist and final score for systematic reviews of oral nutritional supplement interventions in participants who were malnourished or at nutritional risk. Reviews are sorted by clinical background of patients (mixed clinical background or single clinical conditions) and by year of publication1
| Reference (first author) and year | Evidence of an a priori design | Duplicate study selection and data extraction | Comprehensive literature search | Publication status used as an inclusion criterion | List of included and excluded studies available | Characteristics of included studies provided | Assessment and documentation of study quality | Study quality noted in analysis and formulating conclusions | Appropriate methods used to combine studies | Assessment of publication bias | Statement of conflict of interests | AMSTAR 1 score out of 11 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Reviews of studies of patients with mixed clinical backgrounds | ||||||||||||
| Potter 1998 (19) | N | N | N | N | N | Y | Y | Y | Y | Y | Y | 6 |
| Potter 2001 (20) | N | N | N | N | N | N | N | N | Y | N | Y | 2 |
| Stratton 1999 (17) | N | N | Y | N | N | Y | Y | N | N | N | N | 3 |
| Stratton 2003 (16) | N | N | Y | N | N | Y | Y | Y | N | Y | Y | 6 |
| NICE 2006 (18) | Y | N | Y | N | N | Y | Y | Y | Y | N | Y | 7 |
| Vanderkroft 2007 (22) | N | Y | Y | N | Y | Y | Y | N | Y | N | Y | 7 |
| Milne 2009 (23) | Y | N | Y | Y | Y | Y | Y | Y | Y | Y | Y | 10 |
| Cawood 2012 (21) | N | N | Y | N | Y | Y | Y | N | N | N | Y | 5 |
| Beck 2013 (24) | N | N | Y | N | Y | Y | Y | N | Y | N | Y | 6 |
| Stratton 2013 (37) | N | N | Y | N | N | Y | Y | Y | N | N | Y | 5 |
| Feinberg 2017 (25) | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | 11 |
| Column totals (number ofreviews scoring yes forthe item of 11 includedreviews) | 3 | 2 | 9 | 2 | 5 | 10 | 10 | 6 | 7 | 4 | 10 | |
| Reviews of studies of patients with specific clinical backgrounds | ||||||||||||
| Patients with cancer | ||||||||||||
| Elia 2006 (35) | N | N | Y | N | N | N | Y | N | Y | n/a | N | 3 |
| Patients with COPD | ||||||||||||
| Ferreira 2012 (32) | Y | Y | Y | Y | Y | Y | Y | Y | Y | N | Y | 10 |
| Patients with hip fracture | ||||||||||||
| Avenell 2016 (33) | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | 11 |
| Patients with liver disease | ||||||||||||
| Koretz 2012 (26) | Y | N | Y | Y | Y | Y | Y | Y | Y | Y | Y | 10 |
| Langer 2012 (27) | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | 11 |
| Ney 2013 (28) | N | N | Y | N | N | Y | Y | Y | Y | N | Y | 6 |
| Patients with pressure ulcers | ||||||||||||
| Stratton 2005 (30) | N | N | Y | Y | Y | Y | Y | N | Y | n/a | N | 6 |
| Langer 2014 (29) | Y | Y | Y | Y | Y | Y | Y | Y | Y | N | Y | 10 |
| Patients presurgery | ||||||||||||
| Burden 2012 (31) | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | 11 |
| Patients poststroke | ||||||||||||
| Geeganage 2012 (34) | Y | Y | Y | Y | Y | Y | Y | Y | Y | N | Y | 10 |
| Mixed conditions, reported according to individual clinical conditions | ||||||||||||
| Koretz 2007 (36) | Y | Y | Y | Y | Y | Y | Y | Y | Y | N | Y | 10 |
| Column totals (numberof reviews scoringyes for the item of 11included reviews) | 8 | 7 | 11 | 9 | 9 | 10 | 11 | 9 | 11 | 3 | 9 | |
AMSTAR, Assessment of Multiple Systematic Reviews measurement tool; COPD, chronic obstructive pulmonary disease; N, no (item judged to have not been carried out); n/a, insufficient studies to assess this element; Y, yes (item judged to have been carried out completely). Score 8–11: high quality; score 4–7 moderate quality; score 0–3: poor quality. Boxes shaded in black indicate a “Yes” rating; boxes shaded in white indicate a “no” rating; boxes shaded in grey indicate a “not applicable” rating.