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Who Gets to Be Read? Factors Affecting Full-Text Access Rates in Periodontology and Implantology Research
Betina Dutra Lima1, Humberto Alexander Baca Juárez2, Felipe Berwaldt Islabão1
1School of Dentistry, Federal University of Pelotas, Brazil.
Objective:
This study aimed to identify the variables associated with full-text access rates in studies published in Periodontology and Implantology.
Methods:
A bibliometric analysis was performed by reviewing the 30 top-ranking journals in Dentistry, Oral Surgery and Medicine. Only journals with a number of text accesses were included. Independent variables analysed included publication date, first author's country, open access status, h-index, study design, and thematic focus. Multivariable Poisson regression with robust variance was used.
Results:
A total of 3880 studies were included, revealing an access rate (number of views per month) of 83.68 ± 143.62. The journal's impact factor (rate ratio [RR]: 1.09; 95% confidence interval [95% CI]: 1.07-1.11) and being in the open access mode (RR: 1.78; 95% CI: 1.64-1.94) influenced the access rate. Moreover, studies from America (RR: 1.16; 95% CI: 1.02-1.31), Oceania (RR: 1.56; 95% CI: 1.23-1.98), and Europe (RR: 1.50; 95% CI: 1.33-1.69) had significantly higher access rates than those from Asia. Regarding study designs, randomised clinical trials (RCT) (RR: 1.70; 95% CI: 1.47-1.97) and literature reviews (non-systematic reviews [RR: 1.65; 95% CI: 1.27-2.14] and systematic reviews [RR: 1.78; 95% CI: 1.52-2.08]) exhibited greater access than in vitro/animal studies.
Conclusion:
Access to articles in Periodontology is significantly linked to study design (RCTs and reviews), open access availability, and higher journal impact factors.
