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Total numbers and rates of clinical studies by evidence levels
| Level of Evidence | Total | |||||
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | ||
| Oral Presentation (n, %) | 0, 0 | 260, 22 | 156, 13 | 131, 11 | 641, 54 | 1,188 |
| Poster (n, %) | 0, 0 | 123, 3 | 5, 0 | 18, 1 | 3,834, 96 | 3,980 |
| Total (n, %) | 0, 0 | 383, 7 | 161, 3 | 149, 3 | 4,475, 87 | 5,168 |
