The Risk of Stroke in Physicians: A Population-based Cohort Study in Taiwan.

BACKGROUND: Physicians in Taiwan work in stressful workplaces and have heavy workloads, both of which may contribute to the occurrence of a stroke. However, it is not clear whether they have a higher risk of stroke. Therefore, we conducted a population-based cohort study to compare the risks of stroke between physicians and the general population and among subgroups of physicians in Taiwan. METHODS: In the National Health Insurance Research Database of Taiwan, we identified 28,062 physicians and selected 84,186 age- and sex-matched nonmedical staff beneficiaries as the references. Using conditional logistic regression, we compared the prevalence of stroke between physicians and references. In addition, we made comparisons among subgroup of physicians defined by age, sex, comorbidity, specialty, and the level of hospital. RESULTS: During the study period, physicians had higher prevalence rates of hypertension (23.6% vs. 19.1%), hyperlipidemia (21.4% vs. 12.9%), and coronary artery disease (CAD) (6.4% vs. 5.7%) than the referent group, but they had a lower risk of stroke with an odds ratio of 0.61 (95% confidence interval = 0.55, 0.66) after adjusting for hypertension, diabetes, hyperlipidemia, CAD, and active worker. Among physicians, the risks were higher in those who were older or had hypertension, diabetes, hyperlipidemia, or CAD. CONCLUSIONS: Despite having higher prevalence rates of hypertension, hyperlipidemia, and CAD and working in stressful workplaces with heavy workloads, our study suggests that physicians in Taiwan have a lower risk of stroke compared with the general population. These results may indicate the benefits of higher awareness and more knowledge of diseases.

A leading bibliometric author does not have a dominant contribution to research based on the CJAL score: Bibliometric analysis.

BACKGROUND: A total of 22,367 bibliometric articles have been indexed by Web of Science (WoS). The most significant contribution to the field has not yet been identified through bibliometric analysis. A comparison of individual research achievements (IRAs) and trend analysis of article citations are required after extracting bibliometric articles. The study aimed to confirm whether the leading author has a dominant RA and which articles are worth reading for readers using trend analysis. METHODS: We identified authors with at least 100 articles related to bibliometrics in the WoS core collection. A total of 399 articles were collected to cluster author collaborations. Co-word analysis and chord diagrams were used to match chief authors in clusters with Keywords Plus in WoS core collection. The category, journal impact factor, authorship, and L-index (CJAL) score and the absolute advantage coefficient (AAC) were used to compare IRAs and identify the leading author who dominated the field significantly beyond the next 2 authors. In addition to network charts and chord diagrams, 4 visualizations were used to report study results, including a Sankey diagram, a dot plot, a temporal trend graph, and a radar plot. The temporal bubble graph was used to select articles that deserve to be read. RESULTS: The top 3 authors were Lutz Bornmann, Yuh-Shan Ho, and Giovanni Abramo, with CJAL scores of 176.22, 176.02, and 112.06, respectively, from Germany, Italy, and Taiwan. Based on the weak dominance coefficient (AAC = 0.20 < 0.70), it is evident that the leading bibliometric author has no such significant power beyond the next 2 leading authors in IRAs. A trend analysis of the last 4 years was used to illustrate the 2 articles that deserve to be read. CONCLUSION: Three leading authors were identified through a co-word analysis of bibliometrics. There was no evidence of an author who possessed a dominant position due to a lower AAC on the leading author. The CJAL score and the AAC can be applied to many bibliographical studies in the future rather than being limited to bibliometric studies that evaluate the leading authors in a field, as we did in this study.