1,720,966 research outputs found
European trends in breast cancer mortality, 1980–2017 and predictions to 2025
No full textBackground: Breast cancer mortality in European women has been falling for three decades. We analysed trends in mortality from breast cancer in Europe over the period 1980–2017 and predicted number of deaths and rates to 2025. Methods: We extracted death certification data for breast cancer in women for 35 European countries, between 1980 and 2017, from the World Health Organisation database. We computed the age-standardised (world standard population) mortality rates per 100,000 person-years, by country and calendar year. We obtained also predictions for 2025 using a joinpoint regression model and calculated the number of avoided deaths over the period 1994–2025. Results: The mortality rate declined from 15.0 in 2012 to 14.4 in 2017 per 100,000 women (−3.9%) for the European Union (EU)-27. This fall was greater in the EU-14 (−5.2%), whereas rates rose in the transitional countries during this period by 1.9%. Mortality rate predictions across Europe are expected to reach relatively uniform levels in 2025. During the studied period, favourable trends in mortality emerged in most countries, with the greatest decrease in Denmark, whereas Poland and Romania showed an upward trend. The largest predicted decrease in breast cancer mortality was estimated for the United Kingdom (12.2/100,000 women in 2025), leading to the estimated avoidance of 150,000 breast cancer deaths over the period 1994–2025 and 470,000 in the EU-27. Conclusions: Favourable trends in breast cancer mortality were observed in most European countries, and they will continue to fall in the coming years. Less favourable patterns were still observed among the transitional countries than other European areas
Breast cancer mortality in the Americas and Australasia over the period 1980–2017 with predictions for 2025
No full textSubstantial progress has been made in the diagnosis, management, and treatment of breast cancer over the last decades. This has affected mortality rates but has also led to inequality in epidemiological trends between different regions of the world. We extracted death certification data for breast cancer from the World Health Organization database. We analyzed trends in breast cancer mortality in selected countries from America, Asia, and Oceania over the 1980–2017 period and predicted numbers of deaths and rates for 2025. In North America, we observed decreased breast cancer mortality, reaching a rate of about 13/100,000 women in 2017. In Latin American countries, breast cancer mortality rates did not consistently decrease. The highest decreases in mortality were observed in Australia. Mortality trends in Asian countries remained among the lowest globally. We have predicted decreased mortality from breast cancer in 2025 for most of the analyzed countries. The epidemiological situation regarding breast cancer mortality is expected to change in the coming years. Advancements in diagnosis and treatment of breast cancer must be extended in various areas of the world to obtain global control of breast cancer mortality
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Persisting cancer mortality gap between western and eastern Europe
No full textBackground: Over the last three decades, cancer mortality has shown favourable patterns in Europe. Patterns and trends however have been less favourable for most eastern countries. Methods: We computed cancer mortality rates in western (WE) and eastern European (EE) countries using the official mortality database of the World Health Organisation, using joinpoint regression models to identify significant changes in trends over time. Results: Cancer mortality declined by 1–1.4% annually in WE since 1990, to reach an age-standardised rate (world standard) of 125.4/100,000 men and 81.3/100,000 women in 2016. In contrast, EE rates only started to decline around the 2000s in men and remained stable in women, to reach 171.9/100,000 men and 98.2/100,000 women. Lung cancer rates were 30.8/100,000 men and 14/100,000 women in WE versus 47.1/100,000 men and 15.2/100,000 women in EE. In relative terms, the mortality excess in EE increased from 32 to 37% in men and from 15 to 21% in women, compared with WE. The largest percent excesses were for cancers of the upper respiratory tract, stomach, intestines and lung in men and uterus in women. Prostate cancer rates increased in EE to reach 12.7/100,000 in 2016, whereas they decreased to 10.2/100,000 in WE. Compared with rates in 1990, over the period 1991–2016, about 3.9 million cancer deaths were avoided in WE, but no notable improvements was seen in EE. If cancer mortality rates in EE had been those observed in WE, over 55,000 deaths would have been avoided in 2016. Conclusion: Differences in lifestyle patterns, mainly smoking and alcohol, besides different roll-out of improvements in cancer diagnosis and management are the key determinants of the persisting difference in cancer mortality between western and eastern Europe. There is no evidence for the gap to close
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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