Table 2. Results of quality assessment.
| # | Criteria | Number (%) of papers meeting criteria |
|---|---|---|
| 1 | Title and abstract | 18 (38) |
| Introduction | ||
| 2 | Backround/rationale | 48 (100) |
| 3 | Objectives | 41 (85) |
| Methods | ||
| 4 | Study design | 47 (98) |
| 5 | Setting | 41 (81) |
| 6 | Participants | 43 (90) |
| 7 | Variables | 44 (92) |
| 8 | Data sources/measurement | 48 (100) |
| 9 | Bias | 36 (75) |
| 10 | Study size | 1 (2) |
| 11 | Quantitative variables | 42 (88) |
| 12 | Statistical methods | 42 (88) |
| Results | ||
| 13 | Participants | 40 (83) |
| 14 | Descriptive data | 40 (83) |
| 15 | Outcome data | 46 (96) |
| 16 | Main results | 41 (85) |
| 17 | Other analyses | 42 (88) |
| Discussion | ||
| 18 | Key results | 47 (98) |
| 19 | Limitations | 23 (48) |
| 20 | Interpretation | 46 (96) |
| 21 | Generalizability | 36 (75) |
| Other information | ||
| 22 | Funding | 24 (50) |