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Scientific publications in nephrology and urology journals from Chinese authors in East Asia: a 10-year survey of the literature.

ABSTRACT: BACKGROUND: Diseases of the kidneys and genitourinary tract are common health problems that affect people of all ages and demographic backgrounds. In this study, we compared the quantity and quality of nephrological and urological articles published in international journals from the three major regions of China: the mainland (ML), Hong Kong (HK), and Taiwan (TW). METHODS: Nephrological and urological articles originating from ML, TW, and HK that were published in 61 journals from 1999-2008 were retrieved from the PubMed database. We recorded the numbers of total articles, clinical trials, randomized controlled trials, case reports, impact factors (IF), citations, and articles published in the leading general-medicine journals. We used these data to compare the quantity and quality of publication output from the three regions. RESULTS: The total number of articles increased significantly from 1999 to 2008 in the three regions. The number of articles from ML has exceeded that from HK since 2004, and surpassed that from TW in 2008. Publications from TW had the highest accumulated IF, total citations of articles, and the most articles published in leading general-medicine journals. However, HK publications had the highest average IF. Although ML produced the largest quantity of articles, it exhibited the lowest quality among the three regions. CONCLUSION: The number of nephrological and urological publications originating from the three major regions of China increased significantly from 1999 to 2008. The annual number of publications by ML researchers exceeded those from TW and HK. However, the quality of articles from TW and HK was higher than that from ML.

SUBMITTER: Xu J

PROVIDER: S-EPMC3072969 | biostudies-literature | 2011

REPOSITORIES: biostudies-literature

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Scientific publications in nephrology and urology journals from Chinese authors in East Asia: a 10-year survey of the literature.

Xu Jing J Mao Zhi-Guo ZG Kong Mei M Hu Liang-Hao LH Ye Chao-Yang CY Xu Cheng-Gang CG Rong Shu S Sun Li-Jun LJ Wu Jun J Dai Bing B Chen Dong-Ping DP Zhu Yu-Xian YX Zhang Yi-Xiang YX Zhang Yu-Qiang YQ Zhao Xue-Zhi XZ Mei Chang-Lin CL

PloS one 20110408 4

<h4>Background</h4>Diseases of the kidneys and genitourinary tract are common health problems that affect people of all ages and demographic backgrounds. In this study, we compared the quantity and quality of nephrological and urological articles published in international journals from the three major regions of China: the mainland (ML), Hong Kong (HK), and Taiwan (TW).<h4>Methods</h4>Nephrological and urological articles originating from ML, TW, and HK that were published in 61 journals from 1 ...[more]

PMID: 21494662

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Project description:ObjectiveA skewed percentage of industry payments goes to "key opinion leaders" (KOLs) whose prominence and influence has increased with time. Given that KOL is neither precisely defined nor quantifiable, we turned to the level of industry payments as a surrogate quantifiable metric and assessed the associations between industry payments to US rheumatologists and their authorships of publications in high-impact rheumatology journals.MethodsPayments to US rheumatologists during the 2015-2020 interval were obtained from the Centers for Medicare and Medicaid Services Open Payments database, and authorships were tallied for calendar year 2021 publications in the four rheumatology journals (Lancet Rheumatol, Nat Rev Rheumatol, Ann Rheum Dis, Arthritis Rheumatol) with the highest 2021 journal impact factors and journal citation indicators. Differences between groups were determined by chi-squared test, unpaired Student's t-test, one-way analysis of variance (ANOVA), Mann-Whitney rank sum test, and Kruskal-Wallis one-way ANOVA on ranks. Correlations were calculated using Spearman rank order. A P value ≤0.05 was considered significant.ResultsThere were 278 individual US rheumatologists who received industry payments and served as authors of publications in the four high-impact rheumatology journals. Non-research-associated payments to these individuals strongly correlated with research-associated payments. Payments to male US rheumatologists were greater than those to their female counterparts, and payments strongly correlated with the number of publications among male authors but only weakly, and often not significantly, among female authors.ConclusionA substantial fraction of the authorships in calendar year 2021 publications in four high-impact rheumatology journals arose from a very small percentage of all US rheumatologists who had received industry payments during the 2015-2020 interval. Payments to male US rheumatologist-authors were strikingly different from those to female US rheumatologist-authors, and further investigation is needed to explain the glaring difference in payments.

Project description:BackgroundA urinary tract infection (UTI) is one of the most common types of infections affecting the urinary tract. When bacteria enter the bladder or kidney and multiply in the urine, a URI can occur. The urethra is shorter in women than in men, which makes it easier for bacteria to reach the bladder or kidneys and cause infection. A comparison of the research differences between Urology and Nephrology (UN) authors regarding UTI pertaining to the 4 areas (i.e., Chronic Kidney Disease, Hemodialysis, Peritoneal Dialysis, and Renal Transplantation [CHPR]) is thus necessary. We propose and verify 2 hypotheses: CHPR-related articles on UTI have equal journal impact factors (JIFs) in research achievements (RAs) and UN authors have similar research features (RFs).MethodsBased on keywords associated with UTI and CHPR in titles, subject areas, and abstracts since 2013, we obtained 1284 abstracts and their associated metadata (e.g., citations, authors, research institutes, departments, countries of origin) from the Web of Science core collection. There were 1030 corresponding and first (co-first) authors with hT-JIF-indices (i.e., JIF was computed using hT-index rather than citations as usual). The following 5 visualizations were used to present the author's RA: radar, Sankey, time-to-event, impact beam plot, and choropleth map. The forest plot was used to distinguish RFs by observing the proportional counts of keyword plus in Web of Science core collection between UN authors.ResultsIt was observed that CHPR-related articles had unequal JIFs (χ2 = 13.08, P = .004, df = 3, n = 1030) and UN departments had different RFs (Q = 53.24, df = 29, P = .004). In terms of countries, institutes, departments, and authors, the United States (hT-JIF = 38.30), Mayo Clinic (12.9), Nephrology (19.14), and Diana Karpman (10.34) from Sweden had the highest hT-JIF index.ConclusionWith the aid of visualizations, the hT-JIF-index and keyword plus were demonstrated to assess RAs and distinguish RFs between UN authors. A replication of this study under other topics and in other disciplines is recommended in the future, rather than limiting it to UN authors only, as we did in this study.

Dataset Information

Scientific publications in nephrology and urology journals from Chinese authors in East Asia: a 10-year survey of the literature.

Publications

Scientific publications in nephrology and urology journals from Chinese authors in East Asia: a 10-year survey of the literature.

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