TABLE 3.
Search Methodology Used by Each of the Included Studiesa
| Author | PubMed/MEDLINE | EMBASE | Cochrane Library | Other | No. of Primary Studies | Primary Studies Including Only RCTs | PRISMA | QUOROM Score | Oxman-Guyatt Score |
|---|---|---|---|---|---|---|---|---|---|
| Yunes et al34 | + | – | – | – | 4 | – | – | 15 | 3 |
| Freedman et al5 | + | – | – | – | 34 | – | – | 16 | 4 |
| Goldblatt et al7 | + | – | – | – | 11 | – | – | 16 | 4 |
| Prodromos et al28 | + | – | – | – | 64 | – | – | 13 | 2 |
| Biau et al3 | + | – | + | + | 18 | +b | – | 17 | 4 |
| Biau et al2 | + | – | + | + | 14 | +b | – | 13 | 6 |
| Poolman et al27 | – | – | – | + | 14 | +b | – | 12 | 1 |
| Biau et al1 | – | – | – | + | 6 | + | – | 16 | 2 |
| Magnussen et al19 | + | + | – | – | 7 | – | – | 15 | 6 |
| Mohtadi et al23 | + | + | + | + | 19 | +b | – | 16 | 7 |
| Li et al17 | + | + | + | – | 19 | +b | + | 16 | 5 |
| Shi and Yao30 | + | + | + | + | 6 | + | – | 16 | 3 |
| Li et al16 | – | – | – | + | 9 | + | – | 17 | 4 |
| Xie et al33 | + | + | + | – | 14 | – | – | 17 | 5 |
| Xie et al32 | + | + | + | – | 22 | + | – | 17 | 6 |
| Gabler et al6 | + | – | – | + | 28 | – | + | 17 | 6 |
a“+” or “–” indicates that a search method was/was not used in the designated meta-analysis, respectively. PRISMA, Preferred Reporting Items for Systematic Reviews and Meta-Analyses; QUOROM, Quality of Reporting of Meta-analyses; RCT, randomized controlled trial.
bStudy included both RCTs and pseudo-RCTs.