Now showing items 1601-1620 of 1899

    • Whole-Blood Gene Expression Profiles in Large-scale Epidemiological Studies: What Do They Tell 

      Olsen, Karina Standahl; Skeie, Guri; Lund, Eiliv (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-10-08)
      In nutrigenomics, gene expression profiling is used to investigate transcriptional mechanisms associated with nutrients and diet. Blood samples collected in the framework of dietary interventions and epidemiological studies allow the use of humans as the model system, as opposed to using cell lines or animal models. Here, we review recent publications in the field of gene expression profiling, based ...
    • A processual model for functional analyses of carcinogenesis in the prospective cohort design 

      Lund, Eiliv; Plancade, Sandra Caroline; Nuel, Gregory; Bøvelstad, Hege; Thalabard, Jean-Christophe (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-10)
      Traditionally, the prospective design has been chosen for risk factor analyses of lifestyle and cancer using mainly estimation by survival analysis methods. With new technologies, epidemiologists can expand their prospective studies to include functional genomics given either as transcriptomics, mRNA and microRNA, or epigenetics in blood or other biological materials. The novel functional analyses ...
    • Social inequalities and smoking-associated breast cancer - Results from a prospective cohort study 

      Bjerkaas, Eivind; Parajuli, Ranjan; Engeland, Anders; Maskarinec, Gertraud; Weiderpass, Elisabete; Gram, Inger Torhild (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-01-22)
      Objective. The association between smoking and breast cancer has been found in most recent, large cohort studies. We wanted to investigate how smoking-associated breast cancer varies by level of education, a wellestablished measure of socioeconomic status. <p>Methods. We included 302,865 women with 7490 breast cancer cases. Participants were assigned to low, moderate or high level of education ...
    • Increasing prevalence of myopia in Europe and the impact of education 

      Williams, Katie M.; Bertelsen, Geir; Cumberland, Phillippa; Wolfram, Christian; Verhoeven, Virginie J.M.; Anastasopoulos, Eleftherios; Buitendijk, Gabriëlle H.S.; Cougnard-Grégoire, Audrey; Creuzot-Garcher, Catherine; Erke, Maja Gran; Hogg, Ruth; Höhn, René; Hysi, Pirro; Khawaja, Anthony P.; Korobelnik, Jean-François; Ried, Janina; Vingerling, Johannes R.; Bron, Alain; Dartigues, Jean-François; Fletcher, Astrid; Hofman, Albert; Kuijpers, Robert W.A.M.; Luben, Robert N; Oxele, Konrad; Topouzis, Fotis; Hanno, Therese von; Mirshahi, Alireza; Foster, Paul J.; Van Duijn, Cornelia M.; Pfeiffer, Norbert; Delcourt, Cécile; Klaver, Caroline C.W.; Rahi, Jugnoo; Hammond, Christopher J. (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-07)
      Purpose: To investigate whether myopia is becoming more common across Europe and explore whether increasing education levels, an important environmental risk factor for myopia, might explain any temporal trend. <p>Design: Meta-analysis of population-based, cross-sectional studies from the European Eye Epidemiology (E3 ) Consortium. <p>Participants: The E3 Consortium is a collaborative network ...
    • Changes in detection of birth defects and perinatal mortality after introduction of prenatal ultrasound screening in the Kola Peninsula (North-West Russia): combination of two birth registries 

      Postoev, Vitaly Alexandrovich; Grjibovski, Andrej; Nieboer, Evert; Odland, Jon Øyvind (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-11-23)
      Background: Prenatal diagnostics ultrasound was established in Russia in 2000 as a routine method of screening for birth defects. The aims of the current study were twofold: to assess changes in birth defects prevalence at birth and perinatal mortality after ultrasound screening was implemented and to estimate prenatal detection rates for congenital malformations in the city of Monchegorsk (Murmansk ...
    • Estimating Time-Varying PCB Exposures Using Person-Specific Predictions to Supplement Measured Values: A Comparison of Observed and Predicted Values in Two Cohorts of Norwegian Women 

      Nøst, Therese Haugdahl; Breivik, Knut; Wania, Frank; Rylander, Charlotta; Odland, Jon Øyvind; Sandanger, Torkjel M (Journal article; Tidsskriftartikkel; Peer reviewed, 2015)
      Background: Studies on the health effects of polychlorinated biphenyls (PCBs) call for an understanding of past and present human exposure. Time-resolved mechanistic models may supplement information on concentrations in individuals obtained from measurements and/or statistical approaches if they can be shown to reproduce empirical data. <p>Objectives: Here, we evaluated the capability of one ...
    • Isocaloric substitution of carbohydrates with protein: The association with weight change and mortality among patients with type 2 diabetes 

      Campmans-Kuijpers, Marjo J.E.; Sluijs, Ivonne; Nöthlings, Ute; Freisling, Heinz; Overvad, Kim; Weiderpass, Elisabete; Fagherazzi, Guy; Kühn, Tilman; Katzke, Verena A.; Mattiello, Amalia; Sonestedt, Emily; Masala, Giovanna; Agnoli, Claudia; Tumino, Rosario; Spijkerman, Annemieke M.W.; Barricarte, Aurelio; Ricceri, Fulvio; Chamosa, Saioa; Johansson, Ingegerd; Winkvist, Anna; Tjønneland, Anne; Sluik, Diewertje; Boeing, Heiner; Beulens, Joline W.J. (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-04-18)
      Background: The health impact of dietary replacement of carbohydrates with protein for patients with type 2 diabetes is still debated. This study aimed to investigate the association between dietary substitution of carbohydrates with (animal and plant) protein and 5-year weight change, and all-cause and cardiovascular (CVD) mortality risk in patients with type 2 diabetes. <p>Methods: The study ...
    • Changing trends in caesarean section births in Murmansk County, Russia 

      Sherkunova, Tatiana (Master thesis; Mastergradsoppgave, 2014-03-09)
      Objective: To analyze changing trends of caesarean section (CS) birth rates in Murmansk County, Russia over a 5- year period (2006-2010) using the Robson 10-group classification system. Design: A registry- based study. Setting: The Murmansk County Birth Registry (MCBR). Study population: All deliveries registered (N=44 267) in the MCBR between 1st of January 2006 and 31st of December 2010. ...
    • Ethical aspects of registry-based research in the Nordic countries 

      Ludvigsson, Jonas F.; Håberg, Siri Eldevik; Knudsen, Gun Peggy; Lafolie, Pierre; Zoega, Helga; Sarkkola, Catharina; von Kraemer, Stephanie; Weiderpass, Elisabete; Nørgaard, Mette (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-11-23)
      National health care registries in the Nordic countries share many attributes, but different legal and ethical frameworks represent a challenge to promoting effective joint research. Internationally, there is a lack of knowledge about how ethical matters are considered in Nordic registry-based research, and a lack of knowledge about how Nordic ethics committees operate and what is needed to ...
    • Acupuncture versus usual care for postoperative nausea and vomiting in children after tonsillectomy/adenoidectomy: a pragmatic, multicenter, double-blinded, randomized trial 

      Liodden, Ingrid Elisabeth; Sandvik, Leiv; Valeberg, Berit Taraldsen; Borud, Einar Kristian; Norheim, Arne Johan (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-04-13)
      Objectives. To investigate the effect of a standardised acupuncture on nausea and vomiting in children after tonsillectomy with or without adenoidectomy when possible placebo effects were precluded. Methods. A pragmatic, multicentre, double-blinded, randomised controlled trial. The study was conducted over 10 months in 2012–2013 at three ambulatory clinics. Two hundred and eighty-two children, ...
    • The Apolipoprotein B/Apolipoprotein A-I Ratio as a Potential Marker of Plasma Atherogenicity 

      Kaneva, Anastasiya M.; Potolitsyna, Natalya N.; Bojko, Evgeny R.; Odland, Jon Øyvind (Journal article; Tidsskriftartikkel; Peer reviewed, 2015)
      Background. The apolipoprotein (apo) B/apoA-I ratio represents the balance between apoB-rich atherogenic particles and apoAI-rich antiatherogenic particles, and this ratio is considered to be a marker of cardiovascular risk. Although many studies have demonstrated the importance of the apoB/apoA-I ratio in predicting the presence or absence of cardiovascular disease, less is known about apoB/apoA-I ...
    • Extraction of clinical indicators that are associated with the heat/nonheat and excess/deficiency patterns in pattern identifications for stroke 

      Lee, Ju Ah; Ko, Mi Mi; Lee, Jungsup; Kang, Byoung-Kab; Birch, Stephen; Lee, Myeong Soo (Journal article; Tidsskriftartikkel; Peer reviewed, 2015)
      The aim of this study is to extract indicators that are associated with the heat/nonheat and excess/deficiency patterns in stroke pattern identification through the large-scale analysis of clinical data. Two experts, who had more than three years of clinical experience with stroke, independently performed the pattern identification. We analyzed indicators of clinical data with two doctors’ ...
    • Is traditional Chinese medicine recommended in Western medicine clinical practice guidelines in China? A systematic analysis 

      Ren, Jun; Li, Xun; Sun, Jin; Han, Mei; Yang, Guo-Yan; Li, Wen-Yuan; Robinson, Nicola; Lewith, George; Liu, Jianping (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-06-03)
      Background: Evidence-based medicine promotes and relies on the use of evidence in developing clinical practice guidelines (CPGs). The Chinese healthcare system includes both traditional Chinese medicine (TCM) and Western medicine, which are expected to be equally reflected in Chinese CPGs. <p>Objective: To evaluate the inclusion of TCM-related information in Western medicine CPGs developed ...
    • Diet and physical activity for children’s health: a qualitative study of Nepalese mothers’ perceptions 

      Oli, Natalia; Vaidya, Abhinav; Subedi, Madhusudan; Eiben, Gabriele; Krettek, Alexandra (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-09-08)
      Objectives: Non-communicable diseases account for 50% of all deaths in Nepal and 25% result from cardiovascular diseases. Previous studies in Nepal indicate a high burden of behavioural cardiovascular risk factors, suggesting a low level of knowledge, attitude and practice/behaviour regarding cardiovascular health. The behavioural foundation for a healthy lifestyle begins in early childhood, ...
    • How do we deal with multiple goals for care within an individual patient trajectory? A document content analysis of health service research papers on goals for care 

      Berntsen, Gro Karine Rosvold; Gammon, Barbara Deede; Steinsbekk, Aslak; Salamonsen, Anita; Foss, Nina; Ruland, Cornelia; Fønnebø, Vinjar (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-12-10)
      Objectives: Patients with complex long-term needs experience multiple parallel care processes, which may have conflicting or competing goals, within their individual patient trajectory (iPT). The alignment of multiple goals is often implicit or non-existent, and has received little attention in the literature. Research questions: (1) What goals for care relevant for the iPT can be identified ...
    • Cardiovascular health and the modifiable burden of incident myocardial infarction: The Tromsø Study 

      Wilsgaard, Tom; Loehr, LR; Mathiesen, Ellisiv B.; Løchen, Maja-Lisa; Bønaa, Kaare Harald; Njølstad, Inger; Heiss, G (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-03-06)
      Background: The American Heart Association has proposed an impact goal for the year 2020 to improve cardiovascular health by 20%. The objectives of the study were to assess the association between the proposed cardiovascular health metric score and incident myocardial infarction (MI) and to estimate the generalized impact fraction (GIF). <p>Methods: The health metric score was derived from ideal ...
    • Variations in suicide method and in suicide occurrence by season and day of the week in Russia and the Nenets Autonomous Okrug, Northwestern Russia: a retrospective population-based mortality study 

      Sumarokov, Yury A.; Brenn, Tormod; Kudryavtsev, Alexander Valerievich; Nilssen, Odd (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-09-23)
      Background: Suicide is an important world health issue, especially in territories inhabited by indigenous people. This investigated differences in suicide rates, suicide methods, and suicide occurrence by month and day of the week among the indigenous and non-indigenous populations of the Nenets Autonomous Okrug (NAO) and to compare the findings from the NAO with national Russian statistics. <p>Methods: ...
    • Analgesic use in a Norwegian general population: Change over time and high-risk use - The Tromsø Study 

      Samuelsen, Per-Jostein; Slørdal, Lars; Mathisen, Ulla Dorte; Eggen, Anne Elise (Journal article; Tidsskriftartikkel, 2015-06-06)
      Background: Increased use of analgesics in the population is a cause for concern in terms of drug safety. There is a paucity of population-based studies monitoring the change in use over time of both non-prescription (OTC) analgesics and prescription (Rx) analgesics. Although much is known about the risks associated with analgesic use, we are lacking knowledge on high-risk use at a population level. ...
    • Health state utility instruments compared: inquiring into nonlinearity across EQ-5D-5L, SF-6D, HUI-3 and 15D 

      Gamst-Klaussen, Thor; Chen, Gang; Lamu, Admassu Nadew; Olsen, Jan Abel (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-12-21)
      Purpose Different health state utility (HSU) instruments produce different utilities for the same individuals, thereby compromising the intended comparability of economic evaluations of health care interventions. When developing crosswalks, previous studies have indicated nonlinear relationships. This paper inquires into the degree of nonlinearity across the four most widely used HSU-instruments ...
    • Young doctors’ preferences for payment systems: the influence of gender and personality traits 

      Abelsen, Birgit; Olsen, Jan Abel (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-08-19)
      <p> Objective: Activity-based payment contracts are common among doctors, but to what extent are they preferred? The aim of this paper is to elicit young doctors’ preferences for alternative payment systems before they have adapted to an existing system. We examine the existence of gender differences and the extent to which personality traits determine preferences. <p> Methods: A cross-sectional ...