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McCoy EE, Katz R, Louden DKN, Oshima E, Murtha A, Gyamfi-Bannerman C, Santoro N, Howell EA, Halvorson L, Reed SD, Goff BA. Scholarly activity following National Institutes of Health Women's Reproductive Health Research K12 training-a cohort study. Am J Obstet Gynecol 2023; 229:425.e1-425.e16. [PMID: 37437707 PMCID: PMC10584274 DOI: 10.1016/j.ajog.2023.06.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/29/2023] [Accepted: 06/30/2023] [Indexed: 07/14/2023]
Abstract
BACKGROUND National Institutes of Health funding to address basic reproductive health for common female conditions remains disproportionately low, in part because of low success rates of grant applications by obstetrician-gynecologists. OBJECTIVE This study aimed to evaluate the scholarly productivity of individuals supported by the Eunice Kennedy Shriver National Institute of Child Health and Human Development Women's Reproductive Health Research K12 career development award, created to advance careers of obstetrician-gynecologist physician-scientists. STUDY DESIGN We performed a cohort study of individuals who completed at least 2 years of Women's Reproductive Health Research training by June 30, 2015, and had at least 5-year follow-up. Earliest training start date was December 1, 1998. Primary outcomes from public data sources (National Institutes of Health RePORTER, PubMed, iCite) were (1) number of total and R01 National Institutes of Health grants as principal investigator; (2) numbers of total and first and last author publications; and (3) median and highest publication impact factor measured by the relative citation ratio. Secondary outcomes from an email survey subcohort were total number of research grants, federally funded grants, and number of National Institutes of Health grants as coinvestigator; institutional promotions and academic appointments, national and National Institutes of Health leadership roles; and career and mentorship satisfaction. Outcomes were recorded at 5, 10, and 15 years postgraduation, and aggregate anonymized data were divided into 3 groups using Women's Reproductive Health Research completion dates: June 30 of 2005, 2010, and 2015. Temporal trends were assessed. Results were stratified by gender, number of awarded grant cycles (1-2 vs 3-4), and specialty type. Analyses used Fisher exact or Pearson chi-square tests, and Mantel-Haenszel tests of trend. RESULTS The distribution of the cohort (N=178) by graduation completion date was: on or before June 30, 2005 (57 [32%]); July 1, 2005 to June 30, 2010 (60 [34%]); and July 1, 2010 to June 30, 2015 (61 [34%]). Most participants were female (112 [64%]) and maternal-fetal medicine trained (53 [30%]), followed by no fellowship (50 [28%]). Of the 178 participants, 72 (40%) received additional National Institutes of Health funding as a principal investigator, 45 (25%) received at least 1 R01, and 23 (13%) received 2 to 5 R01s. There were 52 (31%) scholars with >10 first author publications, 66 (39%) with >10 last author publications, and 108 (63%) with ≥25 publications. The highest relative citation ratio was a median of 8.07 (interquartile range, 4.20-15.16). There were 121 (71%) scholars with relative citation ratio ≥5, indicating >5-fold greater publication impact than that of other National Institutes of Health-funded scientists in similar areas of research. No differences by gender, institution, or temporal trends were observed. Of the full cohort, 69 (45.7%) responded to the survey; most self-identified as women (50 [73%]) and White (51 [74%]). CONCLUSION Our findings suggest that the infrastructure provided by an institutional K award is an advantageous career development award mechanism for obstetrician-gynecologists, a group of predominantly women surgeons. It may serve as a corrective for the known inequities in National Institutes of Health funding by gender.
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Affiliation(s)
- Erin E McCoy
- Department of Obstetrics and Gynecology, University of Washington School of Medicine, Seattle, WA
| | - Ronit Katz
- Department of Obstetrics and Gynecology, University of Washington School of Medicine, Seattle, WA
| | - Diana K N Louden
- University of Washington Libraries, University of Washington, Seattle, WA
| | - Emiko Oshima
- Department of Obstetrics and Gynecology, University of Washington School of Medicine, Seattle, WA
| | - Amy Murtha
- Department of Obstetrics and Gynecology, University of California San Francisco, San Francisco, CA; Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ
| | - Cynthia Gyamfi-Bannerman
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California San Diego, San Diego, CA
| | - Nanette Santoro
- Department of Obstetrics and Gynecology, University of Colorado School of Medicine, Denver, CO
| | - Elizabeth A Howell
- Department of Obstetrics and Gynecology, University of Pennsylvania, Philadelphia, PA
| | | | - Susan D Reed
- Department of Obstetrics and Gynecology, University of Washington School of Medicine, Seattle, WA.
| | - Barbara A Goff
- Department of Obstetrics and Gynecology, University of Washington School of Medicine, Seattle, WA
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Grubbs AE, Sinha N, Garg R, Barber EL. Use of topic modeling to assess research trends in the journal Gynecologic Oncology. Gynecol Oncol 2023; 172:41-46. [PMID: 36933402 PMCID: PMC10245278 DOI: 10.1016/j.ygyno.2023.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 02/26/2023] [Accepted: 03/01/2023] [Indexed: 03/18/2023]
Abstract
STUDY OBJECTIVE There is scant research identifying thematic trends within medical research. This work may provide insight into how a given field values certain topics. We assessed the feasibility of using a machine learning approach to determine the most common research themes published in Gynecologic Oncology over a thirty-year period and to subsequently evaluate how interest in these topics changed over time. METHODS We retrieved the abstracts of all original research published in Gynecologic Oncology from 1990 to 2020 using PubMed. Abstract text was processed through a natural language processing algorithm and clustered into topical themes using latent Dirichlet allocation (LDA) prior to manual labeling. Topics were investigated for temporal trends. RESULTS We retrieved 12,586 original research articles, of which 11,217 were evaluable for subsequent analysis. Twenty-three research topics were selected at the completion of topic modeling. The topics of basic science genetics, epidemiologic methods, and chemotherapy experienced the greatest increase over the time period, while postoperative outcomes, reproductive age cancer management, and cervical dysplasia experienced the greatest decline. Interest in basic science research remained relatively constant. Topics were additionally reviewed for words indicative of either surgical or medical therapy. Both surgical and medical topics saw increasing interest, with surgical topics experiencing a greater increase and representing a higher proportion of published topics. CONCLUSIONS Topic modeling, a type of unsupervised machine learning, was successfully used to identify trends in research themes. The application of this technique provided insight into how the field of gynecologic oncology values the components of its scope of practice and therefore how it may choose to allocate grant funding, disseminate research, and participate in the public discourse.
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Affiliation(s)
- Allison E Grubbs
- Northwestern University Feinberg School of Medicine, Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Chicago, IL, USA.
| | - Nikita Sinha
- Northwestern University Feinberg School of Medicine, Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Chicago, IL, USA
| | - Ravi Garg
- Institute of Public Health and Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Emma L Barber
- Northwestern University Feinberg School of Medicine, Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Chicago, IL, USA; Institute of Public Health and Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA; Robert H. Lurie Comprehensive Cancer Center, Northwestern University, Chicago, IL, USA; Center for Health Equity Transformation, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
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Levin G, Pareja R, Harrison R, Ramirez PT, Meyer R. Association of literature metrics in gynecologic oncology with country classification by income level. Int J Gynecol Cancer 2023:ijgc-2023-004380. [DOI: 10.1136/ijgc-2023-004380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
Abstract
ObjectiveBibliometric literature in gynecologic oncology is limited. We aimed to study the association between the level of income of the country of authorship and citation metrics.MethodsA retrospective study including all articles and reviews published during 1977–2022 in theInternational Journal of Gynecological Cancer(IJGC) andGynecologic Oncologyjournals. Country of origin was defined as the corresponding author’s address. We classified articles into groups by level of income of the country of origin, as defined by the World Bank. The primary outcome measure was the median number of citations per year.ResultsA total of 9835 articles were included in the analysis (IJGCn=3786 (38.5%),Gynecologic Oncologyn=6049 (61.5%)). There were 8587 (87.3%) publications from high income countries, 1134 (11.5%) from upper-middle income countries, and 114 (1.2%) from lower-middle income countries. There were no publications from countries of low income. Most publications originated in the United States with 4089 (41.6%), followed by China (n=730, 7.4%), Italy (n=533, 5.4%), Canada (n=467, 4.7%), and Japan (n=461, 4.7%). Over the most recent 5 years there was a decrease in the representation of upper-middle income countries and lower-middle income countries; 16.3% (91/557) in 2018 versus 9.1% (38/417) in 2022 (p=0.005). In a multivariable regression analysis that included year of publication, open access publication model, study being supported by funding, publishing journal, review article, and level of income, all factors were associated with high citation per year score except the income classification of the article’s country of origin (adjusted OR 1.59–1.72, 95% CI 0.61 to 4.30).ConclusionHigh income countries have a disproportionate representation in gynecologic oncology publications. After adjusting for confounders, the country’s level of income was not independently associated with a high citation per year score. This implies that the number of citations per year is not compromised by the country’s level of income.
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Saravudecha C, Na Thungfai D, Phasom C, Gunta-in S, Metha A, Punyaphet P, Sookruay T, Sakuludomkan W, Koonrungsesomboon N. Hybrid Gold Open Access Citation Advantage in Clinical Medicine: Analysis of Hybrid Journals in the Web of Science. PUBLICATIONS 2023. [DOI: 10.3390/publications11020021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023] Open
Abstract
Biomedical fields have seen a remarkable increase in hybrid Gold open access articles. However, it is uncertain whether the hybrid Gold open access option contributes to a citation advantage, an increase in the citations of articles made immediately available as open access regardless of the article’s quality or whether it involves a trending topic of discussion. This study aimed to compare the citation counts of hybrid Gold open access articles to subscription articles published in hybrid journals. The study aimed to ascertain if hybrid Gold open access publications yield an advantage in terms of citations. This cross-sectional study included the list of hybrid journals under 59 categories in the ‘Clinical Medicine’ group from Clarivate’s Journal Citation Reports (JCR) during 2018–2021. The number of citable items with ‘Gold Open Access’ and ‘Subscription and Free to Read’ in each journal, as well as the number of citations of those citable items, were extracted from JCR. A hybrid Gold open access citation advantage was computed by dividing the number of citations per citable item with hybrid Gold open access by the number of citations per citable item with a subscription. A total of 498, 636, 1009, and 1328 hybrid journals in the 2018 JCR, 2019 JCR, 2020 JCR, and 2021 JCR, respectively, were included in this study. The citation advantage of hybrid Gold open access articles over subscription articles in 2018 was 1.45 (95% confidence interval (CI), 1.24–1.65); in 2019, it was 1.31 (95% CI, 1.20–1.41); in 2020, it was 1.30 (95% CI, 1.20–1.39); and in 2021, it was 1.31 (95% CI, 1.20–1.42). In the ‘Clinical Medicine’ discipline, the articles published in the hybrid journal as hybrid Gold open access had a greater number of citations when compared to those published as a subscription, self-archived, or otherwise openly accessible option.
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Brandt JS, Skupski DW. Fifty years of the Journal of Perinatal Medicine: an altmetric and bibliometric study. J Perinat Med 2023; 51:3-10. [PMID: 36306543 DOI: 10.1515/jpm-2022-0461] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 10/13/2022] [Indexed: 01/17/2023]
Abstract
OBJECTIVES To apply scientometric methodology to characterize influential articles in the Journal of Perinatal Medicine (JPM). METHODS We performed a cross-sectional study of all JPM articles indexed in Clarivate Web of Science (WOS), NIH Open Citation Collection, and Altmetric Explorer databases (1973-2022). We identified articles cited ≥100 times in WOS and articles with highest Relative Citation Ratios (RCR, a metric of influence based on citations) and highest Altmetric Attention Scores (AAS, a metric of engagement with social media and public platforms). We performed descriptive analysis to characterize influential articles based on citation rates vs. highest AAS, and quantile regression with bootstrapping to estimate the median differences (95% confidence intervals). RESULTS We identified 4095 JPM articles that were indexed in the WOS, of which 3,959 (96.7%) had RCRs and 939 (22.9%) had AASs. The study cohort included 34 articles cited ≥100 times and the 34 top-RCR and 34 top-AAS articles, representing 83 unique articles. These influential articles had median 67 citations (IQR 17-114), median RCR 3.4 (IQR 1.7-5.0), and median AAS 14 (IQR 3-28). The majority were observational studies and reviews. Compared to top-AAS articles, top-cited articles had higher median citations (117 [IQR 111-147] vs. 13 [IQR 5-62]; median difference 104.0, 95% CI 86.6-121.4) and citations per year (7.3 [IQR 4.9-10.6] vs. 2.3 [0.7-4.6]; median difference 5.5 [95% CI 3.1-7.9]). Results were similar for top-RCR vs. top-AAS articles. CONCLUSIONS We identified influential articles during 50 years of JPM, providing insight into the impact of the journal and providing a template for future studies of academic journals.
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Affiliation(s)
- Justin S Brandt
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Division of Maternal-Fetal Medicine, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - Daniel W Skupski
- Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine, Weill Cornell Medicine and New York Presbyterian Queens, New York, NY, USA
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Randomised controlled trials in women's health in the last two decades: A meta-review. Eur J Obstet Gynecol Reprod Biol 2022; 278:11-15. [PMID: 36108449 DOI: 10.1016/j.ejogrb.2022.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 08/22/2022] [Accepted: 09/01/2022] [Indexed: 11/21/2022]
Abstract
OBJECTIVES Obstetric and gynaecological conditions represent a significant burden of disease, requiring clinical research. We aimed to study trends in the publication of randomised controlled trials (RCTs) in women's health over the last two decades. The primary objective was to describe longitudinal trends in the geographical distribution of RCTs in obstetrics and gynaecology. We also described trends in trial funding, publication sources and separately published trial protocols. STUDY DESIGN RCTs were identified by searching the Web of Science alone, due to the large number of results and descriptive nature of analyses. Using the filter tool, only studies labelled as "Clinical trial" or "Article" were included; all other document types were excluded. Trial protocols were identified and analysed separately. Indexing data were extracted using the Web of Science selection tools. As we aimed simply to describe research trends using a single platform, we did not check for duplicates. No process for data pooling was necessary. Correlation of GDP, funding and number of RCTs was calculated using Pearson's r test. RESULTS We identified 39,071 RCTs. The number of annual publications globally increased from 1,406 in 2001 to 1,979 in 2020. The US (n = 12,479) and the UK (n = 3,745) were responsible for the most RCTs, followed by Italy (n = 2,676) and China (n = 2,338). The largest percentage increase in annual publications was seen in Iran (n = 5 to n = 113, +2,160 %) and the Western Pacific Region (n = 16 to n = 171, +968.8 %). GDP was significantly correlated with the number of published RCTs in 2019 for the 25 most prolific countries (p < 0.001), but not with the proportion of RCTs funded. CONCLUSIONS Despite growing contributions from the Western Pacific and Eastern Mediterranean regions, most RCTs are still produced in a small nucleus of high-income countries. Increased international collaboration may benefit both high- and low-income countries.
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He R, Yin T, Pan S, Wang M, Zhang H, Qin R. One hundred most cited article related to pancreaticoduodenectomy surgery: A bibliometric analysis. Int J Surg 2022; 104:106775. [PMID: 35840048 DOI: 10.1016/j.ijsu.2022.106775] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 06/30/2022] [Accepted: 07/07/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND In light of the challenges associated with pancreaticoduodenectomy (PD) and recent key improvements, this bibliometric analysis aimed to analyze the 100 top-cited (T100) articles related to PD surgery to widen the awareness of relevant research on this procedure. METHODS The term "pancreaticoduodenectomy" was used to retrieve articles from the Web of Science Core Collection database. The 100 most cited manuscripts in the English language were identified and further analyzed by their countries of origin, publication journals, authors, and themes. RESULTS A thorough literature search was performed on the Web of Science until April 2020. The total number of citations for the T100 articles ranged from 227 to 3029. The T100 articles came from 18 different countries, with the USA accounting for the plurality (n = 72). Professor J.L. Cameron from Johns Hopkins Medicine USA published the most articles (n = 22), including one as the first author and two as a co-author. Furthermore, Johns Hopkins Medicine, USA, published the most articles on PD surgery (n = 24), with a total citation count of 14,151. The journal Annals of Surgery published 40 of the T100 articles, with 15,847 citations and an average citation count of 396. Among the T100 articles, the citation frequency following the year of publication showed a parabolic trend, with citations peaking in the 9th year following publication. CONCLUSION Our study identified and analyzed the T100 articles in PD surgery. The USA was the dominant country regarding articles, researchers, and institutions. The citations of the articles peaked in the 9th year after publication.
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Affiliation(s)
- Ruizhi He
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Taoyuan Yin
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China; Department of Epidemiology and Biostatistics and State Key Laboratory of Environment Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Shutao Pan
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Min Wang
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Hang Zhang
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Renyi Qin
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China.
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Gienapp AJ, Pippenger W, McGregor AL, Fulton SP. Publications in Pediatric Epilepsy: Using Bibliometrics to Determine Readings in the Field. J Child Neurol 2022; 37:717-726. [PMID: 35722713 DOI: 10.1177/08830738221106276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Bibliometrics and citation analysis are popular forms of analyzing medical literature based on article impact as determined by the number of citations an article has received from other publications. Many bibliometric studies published within the past 10 years have assembled lists of highly cited papers, top 100 papers, or citation classics of specialties, subspecialties, and specific morbidities. For pediatric epilepsy, there is only 1 study that bibliometrically examines articles in this subspecialty. Although bibliometrics generally examines trends in the literature, we used bibliometrics as a methodology for determining a core set of pediatric epilepsy articles with the highest impact (ie, citation count) that could be used as an introductory reading list for residents, fellows, and early career epileptologists. Therefore, we searched Web of Science to identify the 100 top-cited pediatric epilepsy articles and develop 10 topic areas into which we sorted each article. These recommended articles could be used as essential readings for pediatric epilepsy.
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Affiliation(s)
- Andrew J Gienapp
- Neuroscience Institute, 14505Le Bonheur Children's Hospital, Memphis, TN, USA.,Department of Neurosurgery, 12326University of Tennessee Health Science Center, Memphis, TN, USA
| | - Wiley Pippenger
- Neuroscience Institute, 14505Le Bonheur Children's Hospital, Memphis, TN, USA.,5414Rhodes College, Memphis, TN, USA
| | - Amy L McGregor
- Neuroscience Institute, 14505Le Bonheur Children's Hospital, Memphis, TN, USA.,Division of Pediatric Neurology, 12326University of Tennessee Health Science Center, Memphis, TN, USA
| | - Stephen P Fulton
- Neuroscience Institute, 14505Le Bonheur Children's Hospital, Memphis, TN, USA.,Division of Pediatric Neurology, 12326University of Tennessee Health Science Center, Memphis, TN, USA
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Analyzing the Scholarly Impact of Cardiothoracic Surgery Research Using the Relative Citation Ratio. J Surg Res 2022; 275:265-272. [DOI: 10.1016/j.jss.2022.02.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 11/21/2021] [Accepted: 02/10/2022] [Indexed: 12/24/2022]
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Park SU, Blackledge K, Ananth CV, Sauer MV, Brandt JS. Altmetric and bibliometric analysis of influential articles in reproductive biology, 1980-2019. Reprod Biomed Online 2022; 45:384-390. [DOI: 10.1016/j.rbmo.2022.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 03/01/2022] [Accepted: 04/08/2022] [Indexed: 11/16/2022]
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Grover S, Elwood AD, Patel JM, Ananth CV, Brandt JS. Altmetric and bibliometric analysis of obstetrics and gynecology research: influence of public engagement on citation potential. Am J Obstet Gynecol 2022; 227:300.e1-300.e44. [PMID: 35288087 PMCID: PMC9308639 DOI: 10.1016/j.ajog.2022.03.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 01/19/2022] [Accepted: 03/06/2022] [Indexed: 11/01/2022]
Abstract
BACKGROUND Whether research engagement on social media and other public platforms results in increased citations in obstetrics and gynecology remains uncertain. The Altmetric Attention Score is a metric of research influence based on mentions on social media and public platforms, such as newsfeeds and Wikipedia. The correlation between Altmetric Attention Scores, absolute citation rates, and the Relative Citation Ratio (a novel metric of research engagement also based on citation rates) in obstetrics and gynecology research is uncertain. OBJECTIVE To evaluate the correlation between Altmetric Attention Score, absolute citation rate, and Relative Citation Ratio for articles published in obstetrics and gynecology journals from 2004 to 2019. Our second objective was to identify, characterize, and compare the 100 articles with highest Altmetric Attention Scores, the 100 most-cited articles, and the 100 articles with highest Relative Citation Ratios. STUDY DESIGN We performed a cross-sectional altmetric and bibliometric study of all obstetrics and gynecology articles indexed in the National Institutes of Health Open Citation Collection from 2004 to 2019. Articles were included if they were published in obstetrics and gynecology journals according to InCites Journal Citation Reports indexing. Citation data, including citation numbers and Relative Citation Ratios, were downloaded on March 20, 2021 and merged with altmetric data from the Altmetric Explorer on the basis of each article's unique PubMed identification number. We assessed correlation between Altmetric Attention Scores and number of citations and Altmetric Attention Scores and Relative Citation Ratios by calculating the Pearson correlation coefficient. The 100 articles with highest Altmetric Attention Scores, the 100 most-cited articles, and the 100 articles with highest Relative Citation Ratios were characterized and compared using means (standard deviations) and mean differences (95% confidence intervals). RESULTS There were 156,592 articles published in 82 obstetrics and gynecology journals and indexed in the National Institutes of Health Open Citation Collection between 2004 and 2019. The correlation coefficient was 0.18 (95% confidence interval, 0.17-0.19) for Altmetric Attention Scores vs number of citations and 0.10 (95% confidence interval, 0.09-0.11) for Altmetric Attention Scores vs Relative Citation Ratios. There was no overlap among the 100 articles on the highest Altmetric Attention Score list and the 100 most-cited list, and there was minimal overlap among the 100 articles on the highest Altmetric Attention Score list and the 100 highest Relative Citation Ratio list (98 unique articles on each list). Articles with highest Altmetric Attention Scores generated substantially more engagement on social media and other public platforms than most-cited articles (mean Altmetric Attention Score, 763.1 [standard deviation, 520.8] vs 49.9 [standard deviation, 81.6]; mean difference, -713.2 [95% confidence interval, -819.9 to -606.6]) and highest Relative Citation Ratio articles (mean, 116.2 [standard deviation, 415.9]; mean difference, -661.5 [95% confidence interval, -746.2 to -576.9]). In contrast, the articles with highest Altmetric Attention Scores generated far fewer citations than most-cited articles (mean, 39.7 [standard deviation, 47.6] vs 541.8 [standard deviation, 312.8]; mean difference, 502.0 [95% confidence interval, 439.0-565.0]) and highest Relative Citation Ratio articles (mean, 458.9 [standard deviation, 363.5]; mean difference, 427.7 [95% confidence interval, 353.8-501.6]). Nearly half of articles with highest Altmetric Attention Scores were basic/translational studies, often about menopause and environmental factors impacting fertility, whereas most-cited articles and articles with highest Relative Citation Ratios were more likely to be reviews and consensus statements, respectively, often about placentation and polycystic ovary syndrome, respectively. Articles with highest Altmetric Attention Scores were more likely to be published as open-access. CONCLUSION There seems to be weak short-term correlation between Altmetric Attention Scores and citation rates. Further study is warranted to ascertain whether there may be long-term correlation between alternative metrics and citation rates in obstetrics and gynecology.
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Root Canal Disinfection Articles with the Highest Relative Citation Ratios. A Bibliometric Analysis from 1990 to 2019. Antibiotics (Basel) 2021; 10:antibiotics10111412. [PMID: 34827350 PMCID: PMC8614753 DOI: 10.3390/antibiotics10111412] [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: 10/15/2021] [Revised: 11/11/2021] [Accepted: 11/15/2021] [Indexed: 11/30/2022] Open
Abstract
The relative citation rate (RCR) is a normalized article-level metric useful to assess the impact of research articles. The objective of this bibliometric study is to identify and analyze, in root canal disinfection, the 100 articles having the highest RCRs in the period 1990–2019, then compare them with the top 100 articles most cited. A cross-sectional study was performed, and the search strategy ((Disinfection AND root canal) AND ((“1990/01/01”[Date-Publication]: “2019/12/31”[Date-Publication]))) relied on PubMed (n = 4294 documents), and article data were downloaded from the iCite database. The 100 articles with the highest RCRs and the top 100 cited were selected and evaluated in bibliometric terms. Among the 100 articles with the highest RCRs, there were no differences in the three decades for RCRs values, but there were in citations, being 2000–2009 the most cited. The USA was the predominant country (n = 30), followed by Brazil (n = 14). The most frequent study designs were reviews (n = 27) and in vitro (n = 25) and ex vivo (n = 24) studies. All subfields were well represented, although they varied over time. In 2010–2019, regenerative procedures and irrigation/disinfection techniques were predominant. Considering the RCR’s top 100 articles, 76 were common with the 100 most cited articles. Using the RCR metric allowed us to identify influential articles in root canal disinfection, a research field with topics of significance that fluctuate over time. Compared to citations, RCR reduces the time from publication to detection of its importance for the readership and could be a valid alternative to citation counts.
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Doulaveris G, Vani K, Saccone G, Chauhan SP, Berghella V. Number and quality of randomized controlled trials in obstetrics published in the top general medical and obstetrics and gynecology journals. Am J Obstet Gynecol MFM 2021; 4:100509. [PMID: 34656731 DOI: 10.1016/j.ajogmf.2021.100509] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 09/26/2021] [Accepted: 10/10/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND There has been an increasing number of randomized controlled trials published in obstetrics and maternal-fetal medicine to reduce biases of treatment effect and to provide insights on the cause-effect of the relationship between treatment and outcomes. OBJECTIVE This study aimed to identify obstetrical randomized controlled trials published in top weekly general medical journals and monthly obstetrics and gynecology journals, to assess their quality in reporting and identify factors associated with publication in different journals. STUDY DESIGN The 4 weekly medical journals with the highest 2019 impact factor (New England Journal of Medicine, The Lancet, The Journal of the American Medical Association, and British Medical Journal), the top 4 monthly obstetrics and gynecology journals with obstetrics-related research (American Journal of Obstetrics & Gynecology, Ultrasound in Obstetrics & Gynecology, Obstetrics & Gynecology, and the British Journal of Obstetrics and Gynaecology), and the American Journal of Obstetrics & Gynecology Maternal-Fetal Medicine were searched for obstetrical randomized controlled trials in the years 2018 to 2020. The primary outcome was the number of obstetrical randomized controlled trials published in the obstetrics and gynecology journals vs the weekly medical journals and the percentage of trials published, overall and per journal. The secondary outcomes included the proportion of positive vs negative trials overall and per journal and the assessment of the study characteristics of published trials, including quality assessment criteria. RESULTS Of the 4024 original research articles published in the 9 journals during the 3-year study period, 1221 (30.3%) were randomized controlled trials, with 137 (11.2%) randomized controlled trials being in obstetrics (46 in 2018, 47 in 2019, and 44 studies in 2020). Furthermore, 33 (24.1%) were published in weekly medical journals, and 104 (75.9%) were published in obstetrics and gynecology journals. The percentage of obstetrical randomized controlled trials published ranged from 1.5% to 9.6% per journal. Overall, 34.3% of obstetrical trials were statistically significant or "positive" for the primary outcome. Notably, 24.8% of the trials were retrospectively registered after the enrollment of the first study patient. Trials published in the 4 weekly medical journals enrolled significantly more patients (1801 vs 180; P<.001), received more often funding from the federal government (78.8% vs 35.6%; P<.001), and were more likely to be multicenter (90.9% vs 42.3%; P<.001), non-United States based (69.7% vs 49.0%; P=.03), and double blinded (45.5% vs 18.3%; P=.003) than trials published in the obstetrics and gynecology journals. There was no difference in study type (noninferiority vs superiority) and trial quality characteristics, including pretrial registration, ethics approval statement, informed consent statement, and adherence to the Consolidated Standards of Reporting Trials guidelines statement between studies published in weekly medical journals and studies published in obstetrics and gynecology journals. CONCLUSION Approximately 45 trials in obstetrics are being published every year in the highest impact journals, with one-fourth being in the weekly medical journals and the remainder in the obstetrics and gynecology journals. Only about a third of published obstetrical trials are positive. Trials published in weekly medical journals are larger, more likely to be funded by the government, multicenter, international, and double blinded. Quality metrics are similar between weekly medical journals and obstetrics and gynecology journals.
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Affiliation(s)
- Georgios Doulaveris
- Department of Obstetrics and Gynecology and Women's Health, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY (Drs Doulaveris and Vani).
| | - Kavita Vani
- Department of Obstetrics and Gynecology and Women's Health, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY (Drs Doulaveris and Vani)
| | - Gabriele Saccone
- Department of Neuroscience, Reproductive Sciences, and Dentistry, School of Medicine, University of Naples Federico II, Naples, Italy (Dr Saccone)
| | - Suneet P Chauhan
- Department of Obstetrics, Gynecology, and Reproductive Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX (Dr Chauhan)
| | - Vincenzo Berghella
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA (Dr Berghella)
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Brandt JS, Grover S, Ananth CV. Dissemination of research during the first year of the coronavirus disease 2019 pandemic. J Investig Med 2021; 69:1388-1390. [PMID: 34049999 PMCID: PMC8172267 DOI: 10.1136/jim-2021-001923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/11/2021] [Indexed: 11/29/2022]
Affiliation(s)
- Justin S Brandt
- Division of Maternal-Fetal Medicine, Department of Obstetrics, Gynecology, and Reproductive Sciences, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - Sonal Grover
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - Cande V Ananth
- Department of Biostatistics and Epidemiology, Rutgers School of Public Health, Piscataway, New Jersey, USA
- Division of Epidemiology and Biostatistics, Department of Obstetrics, Gynecology, and Reproductive Sciences, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, USA
- Environmental and Occupational Health Sciences Institute, Rutgers Robert Wood Johnson Medical School, Piscataway, NJ, USA
- Cardiovascular Institute of New Jersey, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, USA
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Tantengco OAG, Vink JY, Menon R. Trends, gaps, and future directions of research in cervical remodeling during pregnancy: a bibliometric analysis. J Matern Fetal Neonatal Med 2021; 35:8355-8363. [PMID: 34549687 DOI: 10.1080/14767058.2021.1974387] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
PURPOSE The cervix undergoes a dynamic remodeling process throughout pregnancy. Appropriate timing of cervical remodeling is essential in maintaining the fetus inside the uterus and ensuring cervical dilatation for safe delivery of the fetus at term. This study aims to determine the characteristics and trends of published articles in the field of cervical remodeling during pregnancy through a bibliometric analysis. MATERIALS AND METHODS A systematic review of the literature on cervical remodeling during pregnancy was performed on using the Scopus database from inception to 2020. The following information was obtained for each article: authors, year of publication, title, journal, institution, country, title, keywords, citation frequency, and relative citation ratio. The visualization of collaboration networks of countries and keywords related to cervical remodeling during pregnancy was conducted using VOSviewer software. RESULTS A total of 1979 bibliographic records were obtained from Scopus database. The number of publications increased in the 1980s and peaked in 2010. A total of 80 countries produced research in cervical remodeling during pregnancy. The USA contributed the greatest number of publications (n= 541), total citations (n= 11,971), and number of international collaborations (n= 28 countries). The American Journal of Obstetrics and Gynecology, Obstetrics and Gynecology, and BJOG: An International Journal of Obstetrics and Gynaecology are the top three contributors in this field in terms of number of publications and total citations. The Karolinska Institutet produced the greatest number of publications while UT Southwestern Medical Center was the most cited institution in this field. The topics of the top cited articles were studies regarding the role of collagen degradation in cervical remodeling during pregnancy; dynamics, anatomy, and physiology of cervical remodeling; and the use of misoprostol for cervical ripening and labor induction. CONCLUSIONS Our bibliometric analysis shows the trends and development, scientific impact, and collaboration in the field of cervical remodeling research. These results show the important discoveries in the past and provided new avenues for scientific and clinical investigations in the field.
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Affiliation(s)
- Ourlad Alzeus G Tantengco
- Division of Basic and Translational Research, Department of Obstetrics and Gynecology, The University of Texas Medical Branch at Galveston , Galveston, TX, USA.,Department of Biochemistry and Molecular Biology, College of Medicine, University of the Philippines Manila, Manila, Philippines
| | - Joy Y Vink
- Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, College of Physicians and Surgeons, Columbia University Medical Center, New York, NY, USA
| | - Ramkumar Menon
- Division of Basic and Translational Research, Department of Obstetrics and Gynecology, The University of Texas Medical Branch at Galveston , Galveston, TX, USA
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Ryan MA, Brodsky MB, Blumin JH, Bock JM, Carroll TL, Garrett CG, Lechien JR, Ongkasuwan J, Simpson CB, Akst LM. Twenty-One for 2021: The Most Influential Papers in Laryngology Since 2000. Laryngoscope 2021; 132:406-412. [PMID: 34318936 DOI: 10.1002/lary.29781] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 06/02/2021] [Accepted: 07/14/2021] [Indexed: 12/27/2022]
Abstract
OBJECTIVES/HYPOTHESIS To identify the most influential publications in laryngology since 2000. STUDY DESIGN Modified Delphi process. METHODS Samples of laryngologists drawn from editors of leading journals, organization officers, and thought leaders were invited to participate in a modified Delphi identification of influential laryngology papers. Influential was defined as follows: yielding meaningful practice changes, catalyzing further work as a foundation for an important topic, altering traditional views, or demonstrating durability over time. Quality and validity were not among the selection criteria. Each participant nominated 5 to 10 papers in Round 1. These nominations, augmented with papers from bibliometric analysis, were narrowed further in Round 2 as participants identified their top 20. The 40 papers with the most Round 2 votes were discussed by video conference and then subjected to Round 3 voting, with each participant again selecting their top 20 most influential papers. Final results were collated by the number of Round 3 votes. RESULTS Sixteen of 18 invited laryngologists participated overall (all 16 in Rounds 1 and 3; 14 in Round 2). Twenty-one papers were identified as most influential. One paper appeared on all 16 Round 3 lists; three papers with eight (50%) votes each were lasted to make the list. Eleven of these 21 focused on voice; three each related to cancer, airway, and swallowing; and one encompassed all of these clinical areas. CONCLUSIONS This list of 21 influential laryngology papers serves to focus further research, provides perspective on recent advances within the field, and is an educational resource for trainees and practicing physicians. LEVEL OF EVIDENCE N/A Laryngoscope, 2021.
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Affiliation(s)
- Marisa A Ryan
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University, Baltimore, Maryland, U.S.A
| | - Martin B Brodsky
- Department of Physical Medicine and Rehabilitation; Division Pulmonary and Critical Care Medicine; Outcomes After Critical Illness and Surgery (OACIS) Research Group, Johns Hopkins University, Baltimore, Maryland, U.S.A
| | - Joel H Blumin
- Department of Otolaryngology, Medical College of Wisconsin, Milwaukee, Wisconsin, U.S.A
| | - Jonathan M Bock
- Department of Otolaryngology, Medical College of Wisconsin, Milwaukee, Wisconsin, U.S.A
| | - Thomas L Carroll
- Department of Otolaryngology-Head and Neck Surgery, Harvard Medical School, Boston, Massachusetts, U.S.A.,Division of Otolaryngology, Brigham and Women's Hospital, Boston, Massachusetts, U.S.A
| | - C Gaelyn Garrett
- Vanderbilt Voice Center, Department of Otolaryngology-Head & Neck Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, U.S.A
| | - Jerome R Lechien
- Department of Otolaryngology and Head and Neck Surgery, Foch Hospital, Paris Saclay University, Paris, France.,Department of Otolaryngology, Head and Neck Surgery, CHU Saint-Pierre, Brussels, Belgium.,School of Medicine, Université Libre de Bruxelles, Brussels, Belgium.,Department of Human Anatomy and Experimental Oncology, Faculty of Medicine, UMONS Research Institute for Health Sciences and Technology, University of Mons (UMons), Mons, Belgium
| | - Julina Ongkasuwan
- Department of Otolaryngology-Head and Neck Surgery, Baylor College of Medicine, Houston, Texas, U.S.A.,Pediatric Otolaryngology, Texas Children's Hospital, Houston, Texas, U.S.A
| | - C Blake Simpson
- Department of Otolaryngology-Head and Neck Surgery, University of Alabama at Birmingham, Birmingham, Alabama, U.S.A
| | - Lee M Akst
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University, Baltimore, Maryland, U.S.A
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