Table 3 The framework to categorise included studies filled in based upon included studies
| Â | Data material | Overall design | Methods | Metrics |
|---|---|---|---|---|
The problem: Redundancy | 1. Primary studies 2. Systematic reviews 3. Funding proposals 4. REC proposals 5. Published protocols 6. Researchers | 1. Systematic review 2. Cross-sectional study 3. Other observational study 4. Qualitative study | 1. Citation analysis 2. Content analysis 3. Cut-off analysis 4. Survey | 1. The number of overlapping meta-analyses 2. Impact of SR on design of subsequent research 3. Description of cumulative meta-analyses |
Possible reasons for problem: Presence of QRPs | 1. Primary studies 2. Systematic reviews 3. Funding proposals 4. REC proposals 5. Published protocols 6. Researchers | 1. Systematic review 2. Cross-sectional study 3. Other observational study 4. Qualitative study 5. Randomised study | 1. Citation analysis 2. Content analysis 3. Survey | 1. Number of studies citing SRs 2. Number of studies citing available/relevant SRs 3. Number of similar original studies cited 4. Number of studies citing similar studies 5. Number of studies citing prior SR 6. Number of studies citing SRs or original studies 7. Number of available / relevant SRs that were cited 8. Number and type of studies cited |