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Features of medically assisted reproduction retracted articles.
| Study design | No. of retracted studies | % |
|---|---|---|
| Randomized controlled trial | 16 | 41.0 |
| Review | 6 | 15.4 |
| Prospective study | 4 | 10.3 |
| Retrospective study | 4 | 10.3 |
| Letter | 3 | 7.7 |
| Case report | 3 | 7.7 |
| Case control study | 2 | 5.1 |
| Meta-analysis | 1 | 2.6 |
| 39 | 100.00 | |
| Median | Range | |
| Impact factor | 3.36 | 0.58–96.22 |
| Time to retraction (years) | 2 | < 1–12 |
| Article citations | 3 | 0–42 |
