Table 1.
Study characteristics of 212 RCT abstracts of implantology in terms of the frequency (N) and relative frequency (%)
| Study characteristics | Frequencies | |
| Form of abstract | Structured | 174 (82%) |
| Unstructured | 38 (18%) | |
| Year of publication | 2014 | 101 (48%) |
| 2015 | 74 (35%) | |
| 2016 | 37 (17%) | |
| Journals | European Journal of Oral Implantology | 36 (17%) |
| Clinical oral implants research | 36 (17%) | |
| The International Journal of Oral & Maxillofacial Implants | 23 (11%) | |
| Clinical implant dentistry and related research | 22 (11%) | |
| Other | 95 (45%) | |
| Provenance | Europe | 70 (33%) |
| America | 21 (10%) | |
| Africa | 6 (3%) | |
| Asia | 35 (17%) | |
| Not specified | 80 (38%) | |
| Word count (median) | 258 (min. 94; max. 659) | |
| No of cases analysed (median) | 36 (min. 10; max. 360) | |
| Impact factor (median) | 2.3280 (min. 0; max. 5.62) | |
RCT, randomised controlled trial.