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Nasution H, Koseoglu M, Albayrak B, Yuan JCC, Touloumi F, Kim JJ, Barão VA, Bayindir F, Sukotjo C. The level of evidence in prosthodontics in relation to author's characteristics: An analysis of three leading prosthodontics journals. Heliyon 2024; 10:e31069. [PMID: 38841506 PMCID: PMC11152898 DOI: 10.1016/j.heliyon.2024.e31069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 04/12/2024] [Accepted: 05/09/2024] [Indexed: 06/07/2024] Open
Abstract
Purpose The purpose of this study was to examine the level of evidence (LOE) characteristics and associated factors that change over time in three leading prosthodontics journals. Materials and methods Articles published in The Journal of Prosthetic Dentistry (JPD), International Journal of Prosthodontics (IJP), and Journal of Prosthodontics (JP) in 2013 and 2020 were reviewed by eight independent reviewers. After applying exclusion and inclusion criteria, the number of authors, the corresponding author's educational degree, corresponding author's origin in each clinical research article were recorded. The included articles were rated by reviewers according to the level of evidence criteria and proposed level of evidence-associated factors. Descriptive statistics, univariable, and binary logistic regression analysis were performed to investigate dependent variables and potentially associated factors. All independent variables with a significant effect were analyzed by using a multivariable test. The entry and exit alpha level were set at αE = 0.15. The statistical significance was set at α = 0.05. Results A total of 439 articles from 3 selected journals for the years studied met the inclusion criteria. The percentages of level 1, 2, 3, 4, and 5 articles were 2.7 %, 11.4 %, 9.6 %, 13.4 % and 62.9 %, respectively. Univariable analysis results demonstrated significant associations related to the number of authors (P = 0.005), the corresponding author's educational degree (P = 0.022), and the corresponding author's geographic origin (P = 0.042). Multivariable analysis results demonstrated significant associations related to the number of authors (P = 0.002), and the corresponding author's geographic origin (P = 0.014). Conclusions The number of authors, CA degree, and CA origin had a significant association with the LOE of included prosthodontic studies. Although there was an increase in the number of publications from 2013 to 2020, the level of evidence trend shows no improvement over the years.
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Affiliation(s)
- Hubban Nasution
- Department of Prosthodontics, Faculty of Dentistry, Universitas Sumatera Utara, Medan, Indonesia
| | - Merve Koseoglu
- Department of Prosthodontics, Faculty of Dentistry, University of Sakarya, Sakarya, Turkey
- Department of Prosthodontics, Ataturk University Faculty of Dentistry, Erzurum, Turkey
| | - Berkman Albayrak
- Department of Prosthodontics, Bahçeşehir University School of Dental Medicine, Istanbul, Turkey
| | - Judy Chia-Chun Yuan
- Interim Assistant Dean for Clinical Affairs, College of Dentistry, University of Illinois Chicago, Chicago, IL, USA
| | - Foteini Touloumi
- Department of Prosthodontics, School of Dental Medicine, University of Connecticut, Farmington, CT, USA
| | - Jiyeon J. Kim
- Department of Restorative Dentistry, College of Dentistry, University of Illinois Chicago, Chicago, IL, USA
| | - Valentim A.R. Barão
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, Universidade Estadual de Campinas (UNICAMP), Piracicaba, Brazil
| | - Funda Bayindir
- Department of Prosthodontics, Faculty of Dentistry, University of Ataturk, Erzurum, Turkey
| | - Cortino Sukotjo
- Department of Restorative Dentistry, College of Dentistry, University of Illinois Chicago, Chicago, IL, USA
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Gajic E, Aleksa E, Dzioba A, Strychowsky JE, Hu A, Chan Y, Graham ME. Understanding Gender Differences in Research Productivity of Canadian Otolaryngologists-A Comprehensive National Audit. EAR, NOSE & THROAT JOURNAL 2023:1455613231190272. [PMID: 37534754 DOI: 10.1177/01455613231190272] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2023] Open
Abstract
Objective: To understand the factors contributing to gender disparities in the research productivity of Canadian academic otolaryngologist-head and neck surgeons. Methods: Publicly available sources including departmental websites, SCOPUS, and the Royal College of Physicians and Surgeons of Canada were accessed between February and April 2022 to analyze gender differences in the academic productivity of otolaryngologist-head and neck surgeons across Canada. Gender differences in research productivity metrics, including h-index, i10-index, publication number, and number of first and senior authorships were assessed. Demographic data, including gender, institution, years in practice, and leadership roles were assessed for correlation with increased research productivity. Subgroup analyses were used to evaluate gender differences in productivity metrics, and univariable and multivariable regression analyses were used to evaluate predictors of research productivity. Results: Data were collected for 316 academic otolaryngologists (252 men, 64 women, P < .001). Men had significantly more years of publishing [mean (standard deviation, SD), 15.64 (9.45) vs 12.44 (8.28), P = .014], higher h-indices [12.22 (11.47) vs 7.33 (5.36), P < .001], i10-indices [22.61 (37.88) vs 8.17 (9.14), P > .001], publication numbers [46.63 (65.18) vs 19.59 (23.40), P < .001], and first [8.18 (9.95) vs 4.89 (6.18), P = .001] and senior authorships [12.98 (22.72) vs 3.83 (6.89), P < .001]. Gender differences were most pronounced in head and neck oncology, pediatrics, and the late career stage. Gender disparities in productivity were absent in the early career stage. Multivariate analysis identified only the number publications and number of senior author publications as being significantly influenced by gender. Conclusion: Canadian female otolaryngologist-head and neck surgeons appear to have equivalent research productivity to their male counterparts in the early career stage. This mirrors the recent findings in the United States, and demonstrates progress compared to earlier studies that found women to have lower research productivity in the early career stage.
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Affiliation(s)
- Eva Gajic
- Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Emily Aleksa
- Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
- Department of Otolaryngology-Head and Neck Surgery, London Health Sciences Centre, London, Ontario, Canada
| | - Agnieszka Dzioba
- Department of Otolaryngology-Head and Neck Surgery, London Health Sciences Centre, London, Ontario, Canada
| | - Julie E Strychowsky
- Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
- Department of Otolaryngology-Head and Neck Surgery, London Health Sciences Centre, London, Ontario, Canada
| | - Amanda Hu
- Division of Otolaryngology, Department of Surgery, University of British Columbia, Vancouver, British Columbia, Canada
| | - Yvonne Chan
- Department of Otolaryngology-Head and Neck Surgery, University of Toronto, Toronto, Ontario, Canada
| | - M Elise Graham
- Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
- Department of Otolaryngology-Head and Neck Surgery, London Health Sciences Centre, London, Ontario, Canada
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