35 research outputs found
Diet composition of otters (Lutra lutra L.) living on small watercourses in southwestern Hungary
The diet composition of Eurasian otters (Lutra lutra) was studied by spraint (faecal) analysis (n = 1,460 samples), over a two-year period, on five sections of stream and channel in the DrĂĄva region of southwest Hungary. The primary food of otters was generally fish (range:
33.3â89.9%, biomass estimation), with amphibians of secondary importance (3.4â48.5%). Highest fish consumption was found in winter and lowest in spring. Amphibians were eaten more in spring than in winter. Mammals (range 2.0â9.3%), birds (1.1â4.1%), reptiles (up to 22.2%), crayfish (up to 1.7%) and insects (0.1â4.2%) were consumed at low levels. Trophic niche breadth did not differ significantly between areas, though the widest and lowest seasonal values differed greatly (summer B = 2.48, winter B = 1.12). Otters preyed mainly on small fish (< 100 g in weight, range 88.0â96.9% biomass) at all study areas. Eurytopic (mean 72.7%) and stagnophilic fish (mean 21.7%) were taken preferentially, with lesser consumption of reophilic species (mean 5.6%). Non-native fish were taken most often (mean 71.0%, e.g. giebel carp, brown bullhead). Our results indicate that small watercourses can play an important role as regards otter habitat and, as such, should receive more attention when assessing habitats for otter
Modeling costs and benefits of the organized colorectal cancer screening programme and its potential future improvements in Hungary
Objective: The national population-based colorectal cancer screening programme in Hungary was initiated in December 2018. We aimed to evaluate the current programme and investigate the costs and benefits of potential future changes to overcome the low coverage of the target population. Methods: We performed an economic evaluation from a healthcare payer perspective using an established micro-simulation model (Microsimulation Screening Analysis-Colon). We simulated costs and benefits of screening with fecal immunochemical test in the Hungarian population aged 50â100, investigating also the impact of potential future scenarios which were assumed to increase invitation coverage: improvement of the IT platform currently used by GPs or distributing the tests through pharmacies instead of GPs. Results: The model predicted that the current screening programme could lead to 6.2% colorectal cancer mortality reduction between 2018 and 2050 compared to no screening. Even higher reductions, up to 16.6%, were estimated when tests were distributed through pharmacies and higher coverage was assumed. This change in the programme was estimated to require up to 26 million performed fecal immunochemical tests and 1 million colonoscopies for the simulated period. These future scenarios have acceptable cost-benefit ratios of âŹ8000ââŹ8700 per life-years gained depending on the assumed adherence of invited individuals. Conclusions: With its limitations, the curre
Key indicators of organized cancer screening programs: Results from a Delphi study
Objective
To maximize benefits and reduce potential harms of organized cancer screening programs in Europe, monitoring, quality assurance, and evaluation of long-term impact are required. We aimed to identify the most important indicators to be collected and reported. The study was designed to establish a consensus within a European-level working group and suggest a manageable list of key indicators.
Methods
We conducted a Delphi study among policymakers, researchers, and program coordinators who were experts in breast, cervical, or colorectal cancer screening. Study participants evaluated the importance of screening indicators on a 5-point Likert scale.
Results
The top 10 indicators by study participants were interval cancer rate, detection rate, screening attendance, screening coverage, cancer incidence
Challenges to the surveillance of non-communicable diseases â a review of selected approaches
Background: The rising global burden of non-communicable diseases (NCDs) necessitates the institutionalization of surveillance systems to track trends and evaluate interventions. However, NCD surveillance capacities vary across high- and low- and middle-income countries. The objective of the review was to analyse existing literature with respect to structures of health facility-based NCD surveillance systems and the lessons low- and middle-income countries can learn in setting up and running these systems.
Methods: A literature review was conducted using Pub Med, Web of Knowledge and WHOLIS databases to identify citations published in English language between 1993 and 2013. In total, 20 manuscripts met inclusion criteria: 12 studies were analysed in respect to the surveillance approach, eight supporting documents in respect to general and regional challenges in NCD surveillance.
Results: Eleven of the 12 studies identified were conducted in high-income countries. Five studies had a single disease focus, three a multiple NCD focus and three covered communicable as well as non-communicable diseases. Nine studies were passive assisted sentinel surveillance systems, of which six focused on the primary care level and three had additional active surveillance components, i.e., population-based surveys. The supporting documents reveal that NCD surveillance is rather limited in most low- and middle-income countries despite the increasing disease burden and its socioeconomic impact. Major barriers include institutional surveillance capacities and hence data availability.
Conclusions: The review suggests that given the complex system requirements, multiple surveillance approaches are necessary to collect comprehensive information for effective NCD surveillance. Sentinel augmented facility-based surveillance, preferably supported by population-based surveys, can provide improved evidence and help budget scarce resources.
Electronic supplementary material: The online version of this article (doi:10.1186/s12889-015-2570-z) contains supplementary material, which is available to authorized users
Development and Validation of Three Regional Microsimulation Models for Predicting Colorectal Cancer Screening Benefits in Europe
Background. Validated microsimulation models have been shown to be useful tools in providing support for colorec-
tal cancer (CRC) screening decisions. Aiming to assist European countries in reducing CRC mortality, we developed
and validated three regional models for evaluating CRC screening in Europe. Methods. Microsimulation Screening
AnalysisâColon (MISCAN-Colon) model versions for Italy, Slovenia, and Finland were quantified using data from
different national institutions. These models were validated against the best available evidence for the effectiveness of
screening from their region (when available): the Screening for COlon REctum (SCORE) trial and the Florentine
fecal immunochemical test (FIT) screening study for Italy; the Norwegian Colorectal Cancer Prevention
(NORCCAP) trial and the guaiac fecal occult blood test (gFOBT) Finnish population-based study for Finland.
When published evidenc
International Consensus Based Review and Recommendations for Minimum Reporting Standards in Research on Transcutaneous Vagus Nerve Stimulation (Version 2020).
Given its non-invasive nature, there is increasing interest in the use of transcutaneous vagus nerve stimulation (tVNS) across basic, translational and clinical research. Contemporaneously, tVNS can be achieved by stimulating either the auricular branch or the cervical bundle of the vagus nerve, referred to as transcutaneous auricular vagus nerve stimulation(VNS) and transcutaneous cervical VNS, respectively. In order to advance the field in a systematic manner, studies using these technologies need to adequately report sufficient methodological detail to enable comparison of results between studies, replication of studies, as well as enhancing study participant safety. We systematically reviewed the existing tVNS literature to evaluate current reporting practices. Based on this review, and consensus among participating authors, we propose a set of minimal reporting items to guide future tVNS studies. The suggested items address specific technical aspects of the device and stimulation parameters. We also cover general recommendations including inclusion and exclusion criteria for participants, outcome parameters and the detailed reporting of side effects. Furthermore, we review strategies used to identify the optimal stimulation parameters for a given research setting and summarize ongoing developments in animal research with potential implications for the application of tVNS in humans. Finally, we discuss the potential of tVNS in future research as well as the associated challenges across several disciplines in research and clinical practice
Twenty-three unsolved problems in hydrology (UPH) â a community perspective
This paper is the outcome of a community initiative to identify major unsolved scientific problems in hydrology motivated by a need for stronger harmonisation of research efforts. The procedure involved a public consultation through on-line media, followed by two workshops through which a large number of potential science questions were collated, prioritised, and synthesised. In spite of the diversity of the participants (230 scientists in total), the process revealed much about community priorities and the state of our science: a preference for continuity in research questions rather than radical departures or redirections from past and current work. Questions remain focussed on process-based understanding of hydrological variability and causality at all space and time scales.
Increased attention to environmental change drives a new emphasis on understanding how change propagates across interfaces within the hydrological system and across disciplinary boundaries. In particular, the expansion of the human footprint raises a new set of questions related to human interactions with nature and water cycle feedbacks in the context of complex water management problems. We hope that this reflection and synthesis of the 23 unsolved problems in hydrology will help guide research efforts for some years to come