scholarly journals Trends in the Prevalence of Dementia in Japan

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Hiroko H. Dodge ◽  
Teresa J. Buracchio ◽  
Gwenith G. Fisher ◽  
Yutaka Kiyohara ◽  
Kenichi Meguro ◽  
...  

There is a paucity of data regarding trends in dementia and its subtype prevalence in Japan. Our aims in the current paper are to: (1) summarize epidemiological studies of dementia in Japan including relevant details of study protocol and diagnostic criteria, (2) compare the age-specific prevalence of all-cause dementia among studies, and (3) assess the trends in Alzheimer's disease (AD) versus vascular dementia (VaD) over time. We reviewed diagnostic criteria, all-cause dementia prevalence, and the AD/VaD ratio from 8 large population studies of dementia in Japan. Compared with the Okinawa 1992 study, studies conducted in 1994, 1998, 2005, and 2008 had a higher prevalence of all-cause dementia using Poisson regression models, after controlling for age and sex. In contrast to the US and some European countries, all-cause dementia prevalence is increasing in Japan. The prevalence of AD as opposed to VaD seems to be increasing over time, but large variability in diagnostic criteria, possible regional variability, and differences in prevalence of subtypes of dementia between men and women make it difficult to draw a conclusion about this trend at the national level. Further studies, for example, comparing the population attributable risk of vascular diseases to the prevalence and incidence of dementia could help to clarify the regional variations in etiological subtypes.

Author(s):  
Elisabeth Gulowsen Celius

This chapter describes the incidence and prevalence of multiple sclerosis (MS) and shows the uneven distribution across the world. Despite differences in diagnostic criteria over time and considerable variation in methodology the prevalence is higher in northern Europe, the northern part of North America, Australia, and New Zealand compared to the rest of the world. There is an unexplained increase in both incidence and prevalence across the world. The increased life expectancy correlates with the general increase in life expectancy and is so far neither explained by better diagnostics nor new treatments. Epidemiological studies are essential for our understanding of disease susceptibility and progression, and essential for planning of healthcare. Future studies should be large, methodologically sound, and comparable to enable comparisons across countries and regions.


Water ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 141
Author(s):  
Firoza Akhter ◽  
Maurizio Mazzoleni ◽  
Luigia Brandimarte

In this study, we explore the long-term trends of floodplain population dynamics at different spatial scales in the contiguous United States (U.S.). We exploit different types of datasets from 1790–2010—i.e., decadal spatial distribution for the population density in the US, global floodplains dataset, large-scale data of flood occurrence and damage, and structural and nonstructural flood protection measures for the US. At the national level, we found that the population initially settled down within the floodplains and then spread across its territory over time. At the state level, we observed that flood damages and national protection measures might have contributed to a learning effect, which in turn, shaped the floodplain population dynamics over time. Finally, at the county level, other socio-economic factors such as local flood insurances, economic activities, and socio-political context may predominantly influence the dynamics. Our study shows that different influencing factors affect floodplain population dynamics at different spatial scales. These facts are crucial for a reliable development and implementation of flood risk management planning.


2021 ◽  
Vol 13 (2) ◽  
pp. 169-187
Author(s):  
Lise Esther Herman ◽  
Julian Hoerner ◽  
Joseph Lacey

AbstractOver the last decade, the EU’s fundamental values have been under threat at the national level, in particular among several Central and Eastern European states that joined the EU since 2004. During this time, the European People’s Party (EPP) has been criticized for its unwillingness to vote for measures that would sanction the Hungarian Fidesz government, one of its members, in breach of key democratic principles since 2010. In this paper, we seek to understand how cohesive the EPP group has been on fundamental values-related votes, how the position of EPP MEPs on these issues has evolved over time, and what explains intra-EPP disagreement on whether to accommodate fundamental values violators within the EU. To address these questions, we analyse the votes of EPP MEPs across 24 resolutions on the protection of EU fundamental values between 2011 and 2019. Our findings reveal below-average EPP cohesion on these votes, and a sharp increase in the tendency of EPP MEPs to support these resolutions over time. A number of factors explain the disagreements we find. While the EPP’s desire to maintain Fidesz within its ranks is central, this explanation does not offer a comprehensive account of the group’s accommodative behaviour. In particular, we find that ideological factors as well as the strategic interests of national governments at the EU level are central to understanding the positions of EPP MEPs, as well as the evolution of these positions over time. These results further our understanding of the nature of the obstacles to EU sanctions in fundamental values abuse cases, and the role of partisanship in fuelling EU inaction especially.


2012 ◽  
Vol 30 (24) ◽  
pp. 2995-3001 ◽  
Author(s):  
Malin Hultcrantz ◽  
Sigurdur Yngvi Kristinsson ◽  
Therese M.-L. Andersson ◽  
Ola Landgren ◽  
Sandra Eloranta ◽  
...  

PurposeReported survival in patients with myeloproliferative neoplasms (MPNs) shows great variation. Patients with primary myelofibrosis (PMF) have substantially reduced life expectancy, whereas patients with polycythemia vera (PV) and essential thrombocythemia (ET) have moderately reduced survival in most, but not all, studies. We conducted a large population-based study to establish patterns of survival in more than 9,000 patients with MPNs.Patients and MethodsWe identified 9,384 patients with MPNs (from the Swedish Cancer Register) diagnosed from 1973 to 2008 (divided into four calendar periods) with follow-up to 2009. Relative survival ratios (RSRs) and excess mortality rate ratios were computed as measures of survival.ResultsPatient survival was considerably lower in all MPN subtypes compared with expected survival in the general population, reflected in 10-year RSRs of 0.64 (95% CI, 0.62 to 0.67) in patients with PV, 0.68 (95% CI, 0.64 to 0.71) in those with ET, and 0.21 (95% CI, 0.18 to 0.25) in those with PMF. Excess mortality was observed in patients with any MPN subtype during all four calendar periods (P < .001). Survival improved significantly over time (P < .001); however, the improvement was less pronounced after the year 2000 and was confined to patients with PV and ET.ConclusionWe found patients with any MPN subtype to have significantly reduced life expectancy compared with the general population. The improvement over time is most likely explained by better overall clinical management of patients with MPN. The decreased life expectancy even in the most recent calendar period emphasizes the need for new treatment options for these patients.


2006 ◽  
Vol 9 (6) ◽  
pp. 849-857 ◽  
Author(s):  
Dorret I. Boomsma ◽  
Eco J. C. de Geus ◽  
Jacqueline M. Vink ◽  
Janine H. Stubbe ◽  
Marijn A. Distel ◽  
...  

AbstractIn the late 1980s The Netherlands Twin Register (NTR) was established by recruiting young twins and multiples at birth and by approaching adolescent and young adult twins through city councils. The Adult NTR (ANTR) includes twins, their parents, siblings, spouses and their adult offspring. The number of participants in the ANTR who take part in survey and / or laboratory studies is over 22,000 subjects. A special group of participants consists of sisters who are mothers of twins. In the Young NTR (YNTR), data on more than 50,000 young twins have been collected. Currently we are extending the YNTR by including siblings of twins. Participants in YNTR and ANTR have been phenotyped every 2 to 3 years in longitudinal survey studies, since 1986 and 1991 for the YNTR and ANTR, respectively. The resulting large population-based datasets are used for genetic epidemiological studies and also, for example, to advance phenotyping through the development of new syndrome scales based on existing items from other inventories. New research developments further include brain imaging studies in selected and unselected groups, clinical assessment of psychopathology through interviews, and cross-referencing the NTR database to other national databases. A large biobank enterprise is ongoing in the ANTR in which blood and urine samples are collected for genotyping, expression analysis, and meta-bolomics studies. In this paper we give an update on the YNTR and ANTR phenotyping and on the ongoing ANTR biobank studies.


SLEEP ◽  
2021 ◽  
Vol 44 (Supplement_2) ◽  
pp. A205-A205
Author(s):  
Davide Sparasci ◽  
Raffaele Ferri ◽  
Anna Castelnovo ◽  
Claudio Gobbi ◽  
Chiara Zecca ◽  
...  

Abstract Introduction The aim of this study was to assess the prevalence of restless legs syndrome (RLS), periodic limb movements during sleep (PLMS) and their overlap in a large population of patients with multiple sclerosis (MS), and to compare clinical and paraclinical findings between patients with and without RLS/PLMS. Methods In this cross–sectional, observational, instrumental study, eighty-six patients (M/F: 27/59; mean age 48.0 ± 10.8 years) with a diagnosis of MS underwent a structured telephone interview assessing the five standard diagnostic criteria for RLS. Seventy-six participants underwent Video-polysomnography and Maintenance of Wakefulness Test (MWT). Instrumental and clinical findings were subsequently statistically compared to investigate their association with RLS and PLMS index (PLMSI). Results RLS and PLMS (PLMSI ≥15/h) prevalence in patients with MS was of 31.4% and 31.6% respectively. Among patients with RLS, 37.5% had a PLMSI ≥15/h. In the group with PLMS, 37.5% met all diagnostic criteria for RLS. No differences were found between patients with and without RLS (F = 0.99, p = 0.45), and between patients with and without a PLMSI ≥15/hour (F = 0.32 p = 0.94) on the pool of clinical and instrumental variables. Conclusion RLS is highly prevalent and severe in patients with MS. The prevalence of PLMS is comparable to the general population. The low percentage of patients with RLS having a high PLMSI, together with the absence of correlation between RLS and female gender and older age, support the existence of a distinct symptomatic form of RLS in MS. Support (if any):


2015 ◽  
Vol 6 (01) ◽  
pp. 051-054 ◽  
Author(s):  
Ram Lakhan ◽  
Olúgbémiga T. Ekúndayò

ABSTRACT Background: The Indian population suffers with significant burden of mental illness. The prevalence rate and its association with age and other demographic indicators are needed for planning purpose. Objective: This study attempted to calculate age-wise prevalence of mental illness for rural and urban settings, and its association with age. Materials and Methods: Data published in National Sample Survey Organization (2002) report on disability is used for the analysis. Spearman correlation for strength of association, z-test for difference in prevalence, and regression statistics for predicting the prevalence rate of mental illness are used. Result: Overall population have 14.9/1000 prevalence of mental illness. It is higher in rural setting 17.1/1000 than urban 12.7/1000 (P < 0.001). There is a strong correlation found with age in rural (ϱ = 0.910, P = 0.001) and urban (ϱ = 0.940, P = 0.001). Conclusion: Results of this study confirm other epidemiological research in India. Large-population epidemiological studies are recommended.


Nutrients ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 2829
Author(s):  
Jennifer N. Baldwin ◽  
Lee M. Ashton ◽  
Peta M. Forder ◽  
Rebecca L. Haslam ◽  
Alexis J. Hure ◽  
...  

Healthcare costs are lower for adults who consume more vegetables; however, the association between healthcare costs and fruit and vegetable varieties is unclear. Our aim was to investigate the association between (i) baseline fruit and vegetable (F&V) varieties, and (ii) changes in F&V varieties over time with 15-year healthcare costs in an Australian Longitudinal Study on Women’s Health. The data for Survey 3 (n = 8833 women, aged 50–55 years) and Survey 7 (n = 6955, aged 62–67 years) of the 1946–1951 cohort were used. The F&V variety was assessed using the Fruit and Vegetable Variety (FAVVA) index calculated from the Cancer Council of Victoria’s Dietary Questionnaire for Epidemiological Studies food frequency questionnaire. The baseline FAVVA and change in FAVVA were analysed as continuous predictors of Medicare claims/costs by using multiple regression analyses. Healthy weight women made, on average, 4.3 (95% confidence interval (CI) 1.7–6.8) fewer claims for every 10-point-higher FAVVA. Healthy weight women with higher fruit varieties incurred fewer charges; however, this was reversed for women overweight/obese. Across the sample, for every 10-point increase in FAVVA over time, women made 4.3 (95% CI 1.9–6.8) fewer claims and incurred $309.1 (95% CI $129.3–488.8) less in charges over 15 years. A higher F&V variety is associated with a small reduction in healthcare claims for healthy weight women only. An increasing F&V variety over time is associated with lower healthcare costs.


2020 ◽  
Vol 14 ◽  
pp. 15-21
Author(s):  
Madhusudan Subedi

  Most epidemiological studies focus on the direct causes of diseases while wider, social causal factors are ignored. This paper briefly highlights the history of major epidemics and the role of Anthropocene and Capitalocene for the emergence and reemergence of pandemics like COVID-19. Books, journal articles, and statistics offer information that can explain the phenomena. A historical inquiry can inform us about the fundamental causes of pandemics. Human security and ecology are intertwined, and the global effect of pandemics responded to at the national level is inadequate. The lessons from the past and present help us devise effective ethically and socially appropriate strategies to mitigate the threats. If the present crisis is not taken seriously at the global level, the world has to face more difficult challenges in years to come.


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