Appendix Table A3.
Counts for Figure 3
| Overlap with Other Searches | ||||||||
|---|---|---|---|---|---|---|---|---|
| 0 | 1 | 2 | 3 | 4 | 5 | Sum | Effort* | |
| PubMed | 1.6% | 0.4% | 1.4% | 0.8% | 0.6% | 0.2% | 5% | 1126 |
| NIH RePORTER | 2.1% | 1.2% | 1.4% | 0.8% | 0.5% | 0.1% | 6% | 3300 |
| Google Direct | 6.4% | 10.4% | 7.9% | 5.6% | 2.7% | 0.4% | 33% | 518 |
| Google Lists | 12.3% | 7.3% | 5.5% | 3.0% | 1.5% | 0.2% | 30% | 1100 |
| CTSA Search | 8.3% | 6.3% | 1.7% | 1.7% | 1.0% | 0.0% | 19% | 300** |
| AAMC Search | 11.4% | 6.3% | 5.8% | 3.6% | 1.8% | 0.3% | 29% | 685*** |
| Johnson Study | 7.8% | 12.2% | 15.7% | 19.1% | 11.3% | 1.7% | 68% | 115 |
*
Effort is roughly equal to things searched (article abstracts, grants abstracts, single web pages).
**
Estimate from 60 CTSA universities×5 pages per university.
***
Estimate from 137 medical institutions×5 pages per institution.