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https://www.readbyqxmd.com/read/28088771/do-we-still-need-cross-sectional-studies-in-nephrology-yes-we-do
#1
Giovanni Tripepi, Graziella D'Arrigo, Kitty J Jager, Vianda S Stel, Friedo W Dekker, Carmine Zoccali
Cross-sectional studies represent the second line of evidence (after case reports) in the ladder of evidence aimed at defining disease aetiology. This study design is used to generate hypotheses about the determinants of a given disease but also to investigate the accuracy of diagnostic tests and to assess the burden of a given disease in a population. The intrinsic limitation of cross-sectional studies, when applied to generate aetiological hypotheses, is that both the exposure under investigation and the disease of interest are measured at the same point in time...
January 14, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28088686/immune-history-and-influenza-virus-susceptibility
#2
REVIEW
Sarah Cobey, Scott E Hensley
Antibody responses to influenza viruses are critical for protection, but the ways in which repeated viral exposures shape antibody evolution and effectiveness over time remain controversial. Early observations demonstrated that viral exposure history has a profound effect on the specificity and magnitude of antibody responses to a new viral strain, a phenomenon called 'original antigenic sin.' Although 'sin' might suppress some aspects of the immune response, so far there is little indication that hosts with pre-existing immunity are more susceptible to viral infections compared to naïve hosts...
January 12, 2017: Current Opinion in Virology
https://www.readbyqxmd.com/read/28088617/assessing-physician-productivity-following-norwegian-hospital-reform-a-panel-and-data-envelopment-analysis
#3
Karl Arne Johannessen, Sverre A C Kittelsen, Terje P Hagen
BACKGROUND: Although health care reforms may improve efficiency at the macro level, less is known regarding their effects on the utilization of health care personnel. Following the 2002 Norwegian hospital reform, we studied the productivity of the physician workforce and the effect of personnel mix on this measure in all nineteen Norwegian hospitals from 2001 to 2013. METHODS: We used panel analysis and non-parametric data envelopment analysis (DEA) to study physician productivity defined as patient treatments per full-time equivalent (FTE) physician...
January 6, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28088597/phase-ii-randomized-trial-of-negative-pressure-wound-therapy-to-decrease-surgical-site-infection-in-patients-undergoing-laparotomy-for-gastrointestinal-pancreatic-and-peritoneal-surface-malignancies
#4
Perry Shen, Aaron Blackham, Stacey Lewis, Clancy Clark, Russell Howerton, Harveshp Mogal, Rebecca Dodson, Gregory B Russell, Edward A Levine
BACKGROUND: Surgical site infections (SSI) remain a major source of morbidity and cost after resection of intra-abdominal malignancies. Negative pressure wound therapy (NPWT) has been reported to significantly reduce SSI when applied to the closed laparotomy incision. This paper reports results of a randomized clinical trial examining the effect of NPWT on SSI rates in surgical oncology patients with increased risk for infectious complications. STUDY DESIGN: From 2012-2016, 265 patients underwent open resection of intra-abdominal neoplasms stratified into three groups: gastrointestinal (n=57), pancreas (n=73), and peritoneal surface malignancy (n=135)...
January 11, 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28088566/removal-of-salicylic-acid-as-an-emerging-contaminant-by-a-polar-nano-dendritic-adsorbent-from-aqueous-media
#5
M Arshadi, F Mousavinia, M K Abdolmaleki, M J Amiri, A Khalafi-Nezhad
A polar nano-dendritic adsorbent containing amine groups (SAPAMAA) was synthesized onto the nanoparticles of SiO2Al2O3 and its uptake of salicylic acid (SA) from the synthetic and real water was investigated. The synthesized nanomaterials were fully studied by nuclear magnetic resonance spectrum ((1)H NMR and (13)C NMR), Fourier transform infrared spectroscopy (FT-IR), zeta potential (ζ), inductively coupled plasma atomic emission spectroscopy (ICP-AES), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET) and elemental analysis...
January 9, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28088532/comparison-of-an-anaerobic-feed-and-split-anaerobic-aerobic-feed-on-granular-sludge-development-performance-and-ecology
#6
Benjamin J Thwaites, Petra Reeve, Nirmala Dinesh, Michael D Short, Ben van den Akker
The retrofitting of existing wastewater sequencing batch reactors (SBRs) to select for rapid-settling aerobic granular sludge (AGS) over floc-based conventional activated sludge (CAS), could be a viable option to decrease reactor cycle time and increase hydraulic capacity. Successful CAS-to-AGS conversion has previously been shown to be highly dependent on having a dedicated anaerobic feed, which presents additional engineering challenges when retrofitting SBRs. In this study we compared the performance of a split anaerobic-aerobic (An-Aer) feed with that of a traditional dedicated anaerobic feed regarding AGS formation and stability, nitrogen removal performance and microbial ecology...
December 29, 2016: Chemosphere
https://www.readbyqxmd.com/read/28088280/comparative-study-of-colloidal-gold-and-quantum-dots-as-labels-for-multiplex-screening-tests-for-multi-mycotoxin-detection
#7
Astrid Foubert, Natalia V Beloglazova, Sarah De Saeger
Quantum dots (QDs) and colloidal gold nanoparticles (CG) were evaluated as labels for multiplex lateral flow immunoassay (LFIA) for determination of mycotoxins deoxynivalenol (DON), zearalenone (ZEN) and T2/HT2-toxin (T2/HT2) in cereal matrices. Both developed assays were based on the same immunoreagents (except for the labels), therefore their analytical characteristics could be objectively compared. For both LFIAs antigens (DON-ovalbumin (OVA), ZEN-OVA and T2-OVA) and rabbit anti-mouse immunoglobulin were immobilized on a nitrocellulose membrane as three test lines and one control line, respectively...
February 22, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28088273/a-real-world-impact-of-cost-effectiveness-of-pegylated-interferon-ribavarin-regimens-on-treatment-na%C3%A3-ve-chronic-hepatitis-c-patients-in-taiwan
#8
Pei-Chien Tsai, Ta-Wei Liu, Meng-Hsuan Hsieh, Ming-Lun Yeh, Po-Cheng Liang, Yi-Hung Lin, Ching-I Huang, Chung-Feng Huang, Ming-Yen Hsieh, Nai-Jen Hou, Zu-Yau Lin, Shinn-Cherng Chen, Jee-Fu Huang, Chia-Yen Dai, Wan-Long Chuang, Ming-Lung Yu
Treatments with pegylated interferon/ribavirin (PEG-IFN/RBV) has been standard-of-care in patients with chronic hepatitis C virus (HCV) (CHC) infection and reimbursed in Taiwan. However, the actual cost-effectiveness remains unclear. We aimed to evaluate a real-world cost-effectiveness for CHC patients treated with PEG-IFN/RBV by using a clinical cohort with linkage to the National Health Insurance Research Database of Taiwan. The total and itemized medical-care expenses of outpatient visits of 117 treatment-naïve CHC patients with linkage to the two million sampling of the National Health Insurance Research Database were collected...
January 2017: Kaohsiung Journal of Medical Sciences
https://www.readbyqxmd.com/read/28088246/budget-impact-analysis-of-vaccination-against-haemophilus-influenzae-type-b-as-a-part-of-a-pentavalent-vaccine-in-the-childhood-immunization-schedule-of-iran
#9
Fatemeh Teimouri, Abbas Kebriaeezadeh, Seyed Mohsen Zahraei, MohammadMahdi Gheiratian, Shekoufeh Nikfar
BACKGROUND: Health decision makers need to know the impact of the development of a new intervention on the public health and health care costs so that they can plan for economic and financial objectives. The aim of this study was to determine the budget impact of adding Haemophilus influenzae type b (Hib) as a part of a Pentavalent vaccine (Hib-HBV-DTP) to the national childhood immunization schedule of Iran. METHODS: An excel-based model was developed to determine the costs of including the Pentavalent vaccine in the national immunization program (NIP), comparing the present schedule with the previous one (including separate DTP and hepatitis B vaccines)...
January 14, 2017: Daru: Journal of Faculty of Pharmacy, Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/28088236/economic-burden-of-family-caregiving-for-elderly-population-in-southern-ghana-the-case-of-a-peri-urban-district
#10
Stephen Tettey Nortey, Genevieve Cecilia Aryeetey, Moses Aikins, Djesika Amendah, Justice Nonvignon
BACKGROUND: Health systems in low and lower-middle income countries, particularly in sub-Sahara Africa, often lack the specialized personnel and infrastructure to provide comprehensive care for elderly/ageing populations. Close-to-client community-based approaches are a low-cost way of providing basic care and social support for elderly populations in such resource-constrained settings and family caregivers play a crucial role in that regard. However, family caregiving duties are often unremunerated and their care-related economic burden is often overlooked though this knowledge is important in designing or scaling up effective interventions...
January 14, 2017: International Journal for Equity in Health
https://www.readbyqxmd.com/read/28088232/utilization-of-mobile-phones-for-accessing-menstrual-regulation-services-among-low-income-women-in-bangladesh-a-qualitative-analysis
#11
Chelsea Jordan Messinger, Ilias Mahmud, Sushama Kanan, Yamin Tauseef Jahangir, Malabika Sarker, Sabina Faiz Rashid
BACKGROUND: As many as one-third of all pregnancies in Bangladesh are unplanned, with nearly one-half of these pregnancies ending in either menstrual regulation (MR) or illegal clandestine abortion. Although MR is provided free of charge, or at a nominal cost, through the public sector and various non-profits organizations, many women face barriers in accessing safe, affordable MR and post-MR care. Mobile health (mHealth) services present a promising platform for increasing access to MR among low-income women at risk for clandestine abortion...
January 14, 2017: Reproductive Health
https://www.readbyqxmd.com/read/28088225/using-low-cost-drones-to-map-malaria-vector-habitats
#12
Andy Hardy, Makame Makame, Dónall Cross, Silas Majambere, Mwinyi Msellem
BACKGROUND: There is a growing awareness that if we are to achieve the ambitious goal of malaria elimination, we must compliment indoor-based vector control interventions (such as bednets and indoor spraying) with outdoor-based interventions such as larval source management (LSM). The effectiveness of LSM is limited by our capacity to identify and map mosquito aquatic habitats. This study provides a proof of concept for the use of a low-cost (< $1000) drone (DJI Phantom) for mapping water bodies in seven sites across Zanzibar including natural water bodies, irrigated and non-irrigated rice paddies, peri-urban and urban locations...
January 14, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28088218/spinal-versus-general-anaesthesia-in-surgery-for-inguinodynia-spinasia-trial-study-protocol-for-a-randomised-controlled-trial
#13
Willem A R Zwaans, Léon H P M le Mair, Marc R M Scheltinga, Rudi M H Roumen
BACKGROUND: Chronic inguinodynia (groin pain) is a common complication following open inguinal hernia repair or a Pfannenstiel incision but may also be experienced after other types of (groin) surgery. If conservative treatments are to no avail, tailored remedial surgery, including a neurectomy and/or a (partial) meshectomy, may be considered. Retrospective studies in patients with chronic inguinodynia suggested that spinal anaesthesia is superior compared to general anaesthesia in terms of pain relief following remedial operations...
January 14, 2017: Trials
https://www.readbyqxmd.com/read/28088215/non-associative-versus-associative-learning-by-foraging-predatory-mites
#14
Peter Schausberger, Stefan Peneder
BACKGROUND: Learning processes can be broadly categorized into associative and non-associative. Associative learning occurs through the pairing of two previously unrelated stimuli, whereas non-associative learning occurs in response to a single stimulus. How these two principal processes compare in the same learning task and how they contribute to the overall behavioural changes brought about by experience is poorly understood. We tackled this issue by scrutinizing associative and non-associative learning of prey, Western flower thrips Frankliniella occidentalis, by the predatory mite, Neoseiulus californicus...
January 14, 2017: BMC Ecology
https://www.readbyqxmd.com/read/28088214/determinants-and-materno-fetal-outcomes-related-to-cesarean-section-delivery-in-private-and-public-hospitals-in-low-and-middle-income-countries-a-systematic-review-and-meta-analysis-protocol
#15
Idrissa Beogo, Bomar Mendez Rojas, Marie-Pierre Gagnon
BACKGROUND: Despite the well-established morbidity, mortality, long-term effects, and unnecessary extra-cost burden associated with cesarean section delivery (CSD) worldwide, its rate has grown exponentially. This has become a great topical challenge for the international healthcare community and individual countries. Estimated at three times the acceptable rate as defined by the World Health Organization in 1985, the continued upward trend has been fuelled by higher income countries...
January 14, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28088212/ultrasensitive-detection-of-oncogenic-human-papillomavirus-in-oropharyngeal-tissue-swabs
#16
Andre Isaac, Morris Kostiuk, Han Zhang, Cameron Lindsay, Fawaz Makki, Daniel A O'Connell, Jeffrey R Harris, David W J Cote, Hadi Seikaly, Vincent L Biron
BACKGROUND: The incidence of oropharyngeal squamous cell carcinoma (OPSCC) caused by oncogenic human papillomavirus (HPV) is rising worldwide. HPV-OPSCC is commonly diagnosed by RT-qPCR of HPV E6 and E7 oncoproteins or by p16 immunohistochemistry (IHC). Droplet digital PCR (ddPCR) has been recently reported as an ultra-sensitive and highly precise method of nucleic acid quantification for biomarker analysis. To validate the use of a minimally invasive assay for detection of oncogenic HPV based on oropharyngeal swabs using ddPCR...
January 14, 2017: Journal of Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28088203/a-3-arm-randomised-controlled-trial-of-communicating-healthy-beginnings-advice-by-telephone-chat-to-mothers-with-infants-to-prevent-childhood-obesity
#17
Li Ming Wen, Chris Rissel, Louise A Baur, Alison J Hayes, Huilan Xu, Anna Whelan, Myna Hua, Miranda Shaw, Philayrath Phongsavan
BACKGROUND: With an increasing prevalence of obesity in young children globally, there is an urgent need for the development of effective early interventions. A previous Healthy Beginnings Trial using a nurse-led home visiting program has demonstrated that providing mothers with evidence-based advice can improve maternal practice regarding obesity prevention, and can reduce Body Mass Index (BMI) in the first few years of life. However, the costs for scale-up of home visiting limit its population reach...
January 14, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28088185/igc-an-integrated-analysis-package-of-gene-expression-and-copy-number-alteration
#18
Yi-Pin Lai, Liang-Bo Wang, Wei-An Wang, Liang-Chuan Lai, Mong-Hsun Tsai, Tzu-Pin Lu, Eric Y Chuang
BACKGROUND: With the advancement in high-throughput technologies, researchers can simultaneously investigate gene expression and copy number alteration (CNA) data from individual patients at a lower cost. Traditional analysis methods analyze each type of data individually and integrate their results using Venn diagrams. Challenges arise, however, when the results are irreproducible and inconsistent across multiple platforms. To address these issues, one possible approach is to concurrently analyze both gene expression profiling and CNAs in the same individual...
January 14, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28088109/carbetocin-versus-oxytocin-for-prevention-of-post-partum-haemorrhage-at-caesarean-section-in-the-united-kingdom-an-economic-impact-analysis
#19
Helen A van der Nelson, Tim Draycott, Dimitrios Siassakos, Christopher W H Yau, Anthony J Hatswell
OBJECTIVE: To determine the economic impact of the introduction of carbetocin for the prevention of postpartum haemorrhage (PPH) at caesarean section, compared to oxytocin. STUDY DESIGN: The model is a decision tree conducted from a UK National Health Service perspective. 1500 caesarean sections (both elective and emergency) were modelled over a 12 month period. Efficacy data was taken from a published Cochrane meta-analysis, and costs from NHS Reference costs, the British National Formulary and the NHS electronic Medicines Information Tool...
January 3, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28088060/life-cycle-analysis-of-mitigation-methodologies-for-railway-rolling-noise-and-groundbourne-vibration
#20
Mariana Valente Tuler, Sakdirat Kaewunruen
Negative outcomes such as noise and vibration generated by railways have become a challenge for both industry and academia in order to guarantee that the railway system can accomplish its purposes and at the same time provide comfort for users and people living in the neighbourhood along the railway corridor. The research interest on this field has been increasing and the advancement in noise and vibration mitigation methodologies can be observed using various engineering techniques that are constantly put into test to solve such effects...
January 11, 2017: Journal of Environmental Management
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