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    Coeliac Disease in the Elderly. A multicentre Italian study

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    Background. In the last few decades, we have observed either an increased incidence of coeliac disease (CD) or an increased frequency of its diagnosis. However, only scant information is available about the prevalence and clinical features of CD in the elderly. Aim of the Study. To determine the proportion of elderly patients (age greater than or equal to 65 years) in a large group of consecutive newly-diagnosed cases of adult CID and to analyze the clinical pattern and causes of death. Patients and Methods: 1,353 adult patients with active CID were diagnosed by 10 Italian Gastroenterology Units over a period of 10 years. For each patient, a questionnaire comprising demographic data, signs and symptoms with their duration at the moment of the diagnosis, and associated diseases or complications and the causes of death, was drawn up. Results: A total of 60 patients (4.4%) were over 65 years at diagnosis with a M/F ratio of 1/2.75 which was similar to 1/2.42 in the under-65-year age group. The mean time of delayed diagnosis was 17 +/- 19 years in the elderly and 14 +/- 13.8 years in the adults. Classical features of malabsorption were the main presenting symptoms and gastrointestinal disorders were very often also present in the geriatric patients. Twelve aged subjects (20%) died during the follow-up period (mean 4.6 years) often due to cachexia (5%) and heart failure (5%), even though complications such as intestinal lymphoma were present in 8.3% of cases and caused death in 3.3% of the elderly. Conclusions: In spite of classical manifestations of CID in the elderly, the diagnosis was made in only 4.4% of subjects aged over 65 years and the delay was 17 years. These observations, together with the shortening of life expectancy of elderly CD patients, emphasize the importance for clinicians to consider CD as a possible diagnosis and the need for further investigations to be carried out in the elderly general population. Copyright (C) 2001 S. Karger AG, Basel

    Coeliac Disease in the Elderly. A multicentre Italian study

    No full text
    BACKGROUND: In the last few decades, we have observed either an increased incidence of coeliac disease (CD) or an increased frequency of its diagnosis. However, only scant information is available about the prevalence and clinical features of CD in the elderly. AIM OF THE STUDY: To determine the proportion of elderly patients (age > or =65 years) in a large group of consecutive newly-diagnosed cases of adult CD and to analyze the clinical pattern and causes of death. PATIENTS AND METHODS: 1,353 adult patients with active CD were diagnosed by 10 Italian Gastroenterology Units over a period of 10 years. For each patient, a questionnaire comprising demographic data, signs and symptoms with their duration at the moment of the diagnosis, and associated diseases or complications and the causes of death, was drawn up. RESULTS: A total of 60 patients (4.4%) were over 65 years at diagnosis with a M/F ratio of 1/2.75 which was similar to 1/2.42 in the under-65-year age group. The mean time of delayed diagnosis was 17 +/- 19 years in the elderly and 14 +/- 13.8 years in the adults. Classical features of malabsorption were the main presenting symptoms and gastrointestinal disorders were very often also present in the geriatric patients. Twelve aged subjects (20%) died during the follow-up period (mean 4.6 years) often due to cachexia (5%) and heart failure (5%), even though complications such as intestinal lymphoma were present in 8.3% of cases and caused death in 3.3% of the elderly. CONCLUSIONS: In spite of classical manifestations of CD in the elderly, the diagnosis was made in only 4.4% of subjects aged over 65 years and the delay was 17 years. These observations, together with the shortening of life expectancy of elderly CD patients, emphasize the importance for clinicians to consider CD as a possible diagnosis and the need for further investigations to be carried out in the elderly general populatio

    The high medical cost of celiac disease missed diagnosis: is it cheaper to suspect it in time?

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    Although celiac disease (CD) is one of the most common lifelong disorders worldwide, the rate of correct diagnosis is still low. Studies comparing costs of missed CD diagnosis and economical advantages of early CD diagnosis are still lacking. Our aim was to compare the medical cost of a missed CD diagnosis with the minimal expenditure for its correct diagnosis. Twenty-eight patients newly diagnosed with CD were recruited. Accurate medical history of 3 years preceding CD diagnosis was collected. The cost of tests/surveys was acquired from health insurance claims in Italy and USA. Final medical cost was obtained for Italy and USA and compared to the minimal expenditure of a correct CD diagnosis. The mean cost resulted in 135.87 € (Italy) and 2916.00 (USA)pereachyearofdelayinCDdiagnosis.Onthecontrary,theultimatecostofanappropriatediagnosisamountstoonly203.49and2707.00 (USA) per each year of delay in CD diagnosis. On the contrary, the ultimate cost of an appropriate diagnosis amounts to only 203.49 € and 2707.00 . Data show that each year of delay in CD diagnosis is associated with a significant increase in medical care costs. Since CD diagnosis sometimes requires even more than 10 years of medical interventions, its early detection can lead to a considerable saving of both economic and medical resources

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

    Variations on the Author

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    “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

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    We 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
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