Table A1:
AMSTAR Scores of Included Systematic Reviews
| Author, Year | AMSTAR Scorea | (1) Provided Study Design | (2) Duplicate Study Selection | (3) Broad Literature Search | (4) Considered Status of Publication | (5) Listed Excluded Studies | (6) Provided Characteristics of Studies | (7) Assessed Scientific Quality | (8) Considered Quality in Report | (9) Methods to Combine Appropriate | (10) Assessed Publication Bias | (11) Stated Conflict of Interest |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gomes and Higginson, 2006 (5) | 8 | ✓ | ✗ | ✓ | ✓ | ✗ | ✓ | ✓ | ✓ | ✓ | ✗ | ✓ |
| Howell et al, 2010 (10) | 5 | ✓ | ✓ | ✗ | ✗ | ✗ | ✓ | ✗ | ✗ | ✓ | ✗ | ✓ |
a
Maximum possible score is 11. Details of AMSTAR score are described in Shea et al. (7)