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    • Leisure time and occupational physical activity, resting heart rate, and mortality in the Arctic region of Norway: The Finnmark Study 

      Hermansen, Rune Hermann; Jacobsen, Bjarne K.; Løchen, Maja-Lisa; Morseth, Bente (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-05-20)
      <p><i>Aims - </i>This study examined the association of leisure time physical activity, occupational physical activity, and resting heart rate with all-cause and cardiovascular disease mortality in Sami and non-Sami populations. <p><i>Study design - </i>This was a longitudinal, observational population-based study. <p><i>Methods - </i>The Finnmark 3 study cohort was examined in 1987–1988 and ...
    • Two high-risk susceptibility loci at 6p25.3 and 14q32.13 for Waldenström macroglobulinemia 

      McMaster, Mary L.; Berndt, Sonja I.; Zhang, Jianqing; Slager, Susan L.; Li, Shengchao Alfred; Vajdic, Claire M.; Smedby, Karin E.; Yan, Huihuang; Birmann, Brenda M.; Brown, Elizabeth E.; Smith, Alex; Kleinstern, Geffen; Fansler, Mervin M.; Mayr, Christine; Zhu, Bin; Chung, Charles C.; Park, Ju-Hyun; Burdette, Laurie; Hicks, Belynda D.; Hutchinson, Amy; Teras, Lauren R.; Adami, Hans Olov; Bracci, Paige M.; McKay, James; Monnereau, Alain; Link, Brian K.; Vermeulen, Roel C.H.; Ansell, Stephen M.; Maria, Ann; Diver, W. Ryan; Melbye, Mads; Ojesina, Akinyemi I.; Kraft, Peter; Boffetta, Paolo; Clavel, Jacqueline; Giovannucci, Edward; Besson, Caroline M.; Canzian, Federico; Travis, Ruth C.; Vineis, Paolo; Weiderpass, Elisabete; Montalvan, Rebecca; Wang, Zhaoming; Yeager, Meredith; Becker, Nikolaus; Benavente, Yolanda; Brennan, Paul; Foretova, Lenka; Maynadie, Marc; Nieters, Alexandra; de Sanjose, Silvia; Staines, Anthony; Conde, Lucia; Riby, Jacques; Glimelius, Bengt; Hjalgrim, Henrik; Pradhan, Nisha; Feldman, Andrew L.; Novak, Anne J.; Lawrence, Charles; Bassig, Bryan A.; Lan, Qing; Zheng, Tongzhang; North, Kari E.; Tinker, Lesley F.; Cozen, Wendy; Severson, Richard K.; Hofmann, Jonathan N.; Zhang, Yawei; Jackson, Rebecca D.; Morton, Lindsay M.; Purdue, Mark P.; Chatterjee, Nilanjan; Offit, Kenneth; Cerhan, James R.; Chanock, Stephen J.; Rothman, Nathaniel; Vijai, Joseph; Goldin, Lynn R.; Skibola, Christine F.; Caporaso, Neil E. (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-10-10)
      Waldenström macroglobulinemia (WM)/lymphoplasmacytic lymphoma (LPL) is a rare, chronic B-cell lymphoma with high heritability. We conduct a two-stage genome-wide association study of WM/LPL in 530 unrelated cases and 4362 controls of European ancestry and identify two high-risk loci associated with WM/LPL at 6p25.3 (rs116446171, near EXOC2 and IRF4; OR = 21.14, 95% CI: 14.40–31.03, P = 1.36 × 10<s ...
    • A few more minutes make a difference? The relationship between content and length of GP consultations 

      Gude, Tore; Vaglum, Per Jørgen Wiggen; Anvik, Tor; Baerheim, Anders; Grimstad, Hilde (Journal article; Tidsskriftartikkel; Peer reviewed, 2013-01-03)
      <p><i>Objectives - </i>To investigate the relationship between the length of a medical consultation in a general practice setting and the biopsychosocial information obtained by the physician, and to explore the characteristics of young physicians obtaining comprehensive, especially psychosocial information. <p><i>Design - </i>A prospective, longitudinal follow-up study. Setting. Videotaped ...
    • Adiposity and asthma in adults: a bidirectional Mendelian randomization analysis of the HUNT Study 

      Sun, Yi-Qian; Brumpton, Ben Michael; Langhammer, Arnulf; Chen, Yue; Kvaløy, Kirsti; Mai, Xiao-Mei (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-10-14)
      <i>Background</i> - We aimed to investigate the potential causal associations of adiposity with asthma overall, asthma by atopic status or by levels of symptom control in a large adult population and stratified by sex. We also investigated the potential for reverse causation between asthma and risk of adiposity.<p> <p><i>Methods</i> - We performed a bidirectional one-sample Mendelian randomisation ...
    • Comparing the Efficacy of an Identical, Tailored Smoking Cessation Intervention Delivered by Mobile Text Messaging Versus Email: Randomized Controlled Trial 

      Gram, Inger Torhild; Larbi, Dillys; Wangberg, Silje C (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-09-27)
      <p><i>Background - </i>There is a need to deliver smoking cessation support at a population level, both in developed and developing countries. Studies on internet-based and mobile phone–based smoking cessation interventions have shown that these methods can be as effective as other methods of support, and they can have a wider reach at a lower cost. <p><i>Objective - </i>This randomized controlled ...
    • Incidence and Risk Factors of Pre-Eclampsia in the Paropakar Maternity and Women's Hospital, Nepal: A Retrospective Study 

      Das, Seema; Das, Rupesh; Bajracharya, Rashmita; Baral, Gehanath; Jabegu, Bina; Odland, Jon Øyvind; Odland, Maria Lisa (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-09-24)
      This study aims to determine the incidence of pre-eclampsia and distribution of risk factors of pre-eclampsia at Paropakar Maternity and Women’s Hospital, Kathmandu, Nepal. A retrospective study included 4820 pregnant women from 17 September to 18 December 2017. Data were obtained from the medical records of the hospital’s Statistics Department. Associations between the risk factors and pre-eclampsia ...
    • Risk Factors for hypospadias in Northwest Russia: A Murmansk County Birth Registry Study 

      Kovalenko, Anton Alexandrovich; Brenn, Tormod; Odland, Jon Øyvind; Nieboer, Evert; Krettek, Alexandra; Anda, Erik Eik (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-04-04)
      <i>Background</i> - Hypospadias is the most common congenital anomaly of the penis, but its causes are mainly unknown. Of the risk factors identified, the most plausible are hormonal and genetic. The aim of this study was to identify risk factors for hypospadias in Northwest Russia based on registry data.<p> <p><i>Methods</i> - The study population included male infants registered in the Murmansk ...
    • Adipokines and inflammation markers and risk of differentiated thyroid carcinoma: The EPIC study 

      Dossus, Laure; Franceschi, Silvia; Biessy, Carine; Navionis, Anne-Sophie; Travis, Ruth C.; Weiderpass, Elisabete; Scalbert, Augustin; Romieu, Isabelle; Tjønneland, Anne; Olsen, Anja; Overvad, Kim; Boutron-Ruault, Marie-Christine; Bonnet, Fabrice; Fournier, Agnès; Fortner, Renée Turzanski; Kaaks, Rudolf; Aleksandrova, Krasimira; Trichopoulou, Antonia; La Vecchia, Carlo; Peppa, Eleni; Tumino, Rosario; Panico, Salavatore; Palli, Domenico; Agnoli, Claudia; Vineis, Paolo; Bueno-de-Mesquita, Hendrik Bastiaan; Peeters, Petra H.; Skeie, Guri; Zamora-Ros, Raul; Chirlaque, María-Dolores; Ardanaz, Eva; Sánchez, Maria-Jose; Quirós, Jose Ramón; Dorronsoro, Miren; Sandström, Maria; Nilsson, Lena Maria; Schmidt, Julie A.; Khaw, Kay-Tee; Tsilidis, Konstantinos K.; Aune, Dagfinn; Riboli, Elio; Rinaldi, Sabina (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-11-23)
      Other than the influence of ionizing radiation and benign thyroid disease, little is known about the risk factors for differentiated thyroid cancer (TC) which is an increasing common cancer worldwide. Consistent evidence shows that body mass is positively associated with TC risk. As excess weight is a state of chronic inflammation, we investigated the relationship between concentrations of leptin, ...
    • Know Your Heart: Rationale, design and conduct of a cross-sectional study of cardiovascular structure, function and risk factors in 4500 men and women aged 35-69 years from two Russian cities, 2015-18 

      Cook, Sarah; Malyutina, S; Kudryavtsev, Alexander; Averina, Maria; Bobrova, Natalia; Boytsov, S; Brage, S; Clark, TG; Diez Benavente, S; Eggen, Anne Elise; Hopstock, Laila Arnesdatter; Hughes, A; Johansen, Heidi; Kholmatova, Kamila; Kichigina, A; Kontsevaya, Anna; Kornev, M; Leong, D; Magnus, Per; Mathiesen, Ellisiv B.; McKee, M; Morgan, K; Nilssen, Odd-Ragnar; Plakhov, I; Quint, JK; Rapala, A; Ryabikov, A; Saburova, Lyudmila; Schirmer, Henrik; Shapkina, M; Shiekh, Suhail; Shkolnikov, VM; Stylidis, Michael; Voevoda, Mikhail; Westgate, Kate; Leon, David Adrew (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-06-04)
      Russia has one of the highest rates of cardiovascular disease in the world. The International Project on Cardiovascular Disease in Russia (IPCDR) was set up to understand the reasons for this. A substantial component of this study was the Know Your Heart Study devoted to characterising the nature and causes of cardiovascular disease in Russia by conducting large cross-sectional surveys in two Russian ...
    • Loss of life years due to unavailable helicopter emergency medical service: a single base study from a rural area of Norway 

      Zakariassen, Erik; Østerås, Øyvind; Nystøyl, Dag Ståle; Breidablik, Hans Johan; Solheim, Eivind; Brattebø, Guttorm; Ellensen, Vegard Skalstad; Hoff, Jana Midelfart; Hordnes, Knut; Aksnes, Arne; Heltne, Jon-Kenneth; Hunskaar, Steinar; Hotvedt, Ragnar (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-04-29)
      <i>Background</i>: Despite the potential benefits of physician-staffed Helicopter Emergency Medical Service (HEMS), many dispatches to primary HEMS missions in Norway are cancelled before patient encounter. Information is sparse regarding the health consequences when medically indicated HEMS missions are cancelled and the patients are treated by a GP and ambulance staff only. We aimed to estimate ...
    • Identifying decisions in optometry: A validation study of the decision identification and classification taxonomy for use in medicine (DICTUM) in optometric consultations 

      Sundling, Vibeke; Stene, Hege Anita; Eide, Hilde; Ofstad, Eirik Hugaas (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-02-18)
      <i>Objective</i> - The aim of this study was to assess the validity and reliability of the Decision Identification and Classification Taxonomy for Use in Medicine (DICTUM) applied to optometry, to compare decisions in medical and optometric consultations, and to describe decisions in optometry. <p> <p><i>Methods</i> - The study had a cross-sectional design. Data was collected from January to ...
    • Identifying eating habits in Finnish children: A cross-sectional study 

      De Oliveira Figueiredo, Rejane Augusta; Viljakainen, Jannina; Viljakainen, Heli; Roos, Eva; Rounge, Trine Ballestad; Weiderpass, Elisabete (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-03-15)
      <p><i>Background - </i>We aimed to identify different eating habits among Finnish children and to evaluate their association with meal patterns, breakfast consumption, and socio-demographic characteristics in a large, nationwide cohort of children. <p><i>Methods - </i>We evaluated 10,569 children aged 9–14 years into the Finnish Health in Teens cohort in a cross-sectional design. The hierarchical ...
    • Change in prevalence and severity of metabolic syndrome in the Sami and non-Sami population in rural Northern Norway using a repeated cross-sectional population-based study design: the SAMINOR Study 

      Michalsen, Vilde Lehne; Kvaløy, Kirsti; Svartberg, Johan; Siri, Susanna Ragnhild; Melhus, Marita; Broderstad, Ann Ragnhild (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-06-14)
      <p><i>Objective - </i>To examine the change in both the prevalence and severity of metabolic syndrome (MetS) in the Sami and non-Sami in Northern Norway due to a lack of knowledge regarding the development of MetS in this population. <p><i>Design - </i>Repeated cross-sectional study. <p><i>Setting - </i>The study is based on data from the SAMINOR 1 Survey (2003–2004, n=6550) and the SAMINOR 2 ...
    • Progestin-only and combined oral contraceptives and receptor-defined premenopausal breast cancer risk: The Norwegian Women and Cancer Study 

      Busund, Marit Katinka; Stensland-Bugge, Nora; Braaten, Tonje; Waaseth, Marit; Rylander, Charlotta; Lund, Eiliv (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-01-19)
      Receptor-defined subtypes of breast cancer represent distinct cancer types and have differences in risk factors. Whether the two main hormonal forms of oral contraceptives (OCs); i.e. progestin-only (POC) and combined oral contraceptives (COC), are differentially associated with these subtypes are not well known. The aim of our study was to assess the effect of POC and COC use on hormone receptor-defined ...
    • Periodontitis Prevalence and Severity in Adults: A Cross-Sectional Study in Norwegian Circumpolar Communities 

      Holde, Gro Eirin; Oscarson, Nils; Trovik, Tordis A; Tillberg, Anders; Jönsson, Birgitta (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-10-01)
      <p><i>Background - </i>The aim of this study is to describe the prevalence, severity, and extent of periodontitis in the adult population of circumpolar communities in Norway using data from the Tromstannen–Oral Health in Northern Norway study. <p><i>Methods - </i>In this cross‐sectional survey, data were collected from a randomized population sample (aged 20 to 79 years) in Northern Norway. ...
    • Rationale for a Swedish cohort consortium 

      Sundström, Johan; Björkelund, Cecilia; Giedraitis, Vilmantas; Hansson, Per-Olof; Högman, Marieann; Janson, Christer; Koupil, Ilona; Kristenson, Margareta; Trolle Lagerros, Ylva; Leppert, Jerzy; Lind, Lars; Lissner, Lauren; Johansson, Ingegerd; Ludvigsson, Jonas F.; Nilsson, Peter M.; Olsson, Håkan; Pedersen, Nancy L.; Rosenblad, Andreas; Rosengren, Annika; Sandin, Sven; Snäckerström, Tomas; Stenbeck, Magnus; Söderberg, Stefan; Weiderpass, Elisabete; Wanhainen, Anders; Wennberg, Patrik; Fortier, Isabel; Heller, Susanne; Storgärds, Maria; Svennblad, Bodil (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-01-08)
      We herein outline the rationale for a Swedish cohort consortium, aiming to facilitate greater use of Swedish cohorts for world-class research. Coordination of all Swedish prospective population-based cohorts in a common infrastructure would enable more precise research findings and facilitate research on rare exposures and outcomes, leading to better utilization of study participants’ data, better ...
    • Prevalence and correlates of self-reported disordered eating: A cross-sectional study among 90 592 middle-aged Norwegian women 

      Sigstad, Marie; Rosenvinge, Jan H; Skeie, Guri; Rylander, Charlotta (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-01-23)
      Disordered eating (DE) is extensively studied among adolescents and young women. However, there is growing evidence that DE as well as the clinical eating disorders may occur at any age from childhood to advanced years. This study aimed to determine the prevalence and correlates of DE in a representative sample of middle-aged women from Norway. The study included 90 592 women (median age: 55 years) ...
    • Undiagnosed cardiovascular disease prior to cardiovascular death in individuals with severe mental illness 

      Heiberg, Ina Heidi; Jacobsen, Bjarne K.; Balteskard, Lise; Bramness, Jørgen Gustav; Næss, Øyvind; Ystrøm, Eivind; Reichborn-Kjennerud, Ted; Hultman, Christina M.; Nesvåg, Ragnar; Høye, Anne (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-03-07)
      <p><i>Objective - </i>To examine whether individuals with schizophrenia (SCZ) or bipolar disorder (BD) had equal likelihood of not being diagnosed with cardiovascular disease (CVD) prior to cardiovascular death, compared to individuals without SCZ or BD. <p><i>Methods - </i>Multivariate logistic regression analysis including nationwide data of 72 451 cardiovascular deaths in the years 2011–2016. ...
    • "If you do not birget [manage] then you don't belong here": a qualitative focus group study on the cultural meanings of suicide among Indigenous Sámi in arctic Norway 

      Stoor, Jon Petter Anders; Berntsen, Gro; Hjelmeland, Heidi Marie; Silviken, Anne (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-01-24)
      Suicide is a major public health issue across the Arctic, especially among Indigenous Peoples. The aim of this study was to explore and describe cultural meanings of suicide among Sámi in Norway. Five open-ended focus group discussions (FGDs) were conducted with 22 Sámi (20) and non-Sámi (2) participants in South, Lule, Marka, coastal and North Sámi communities in Norway. FGDs were recorded, transcribed ...
    • Socioeconomic position, lifestyle habits and biomarkers of epigenetic aging: A multi-cohort analysis 

      Fiorito, Giovanni; McCrory, Cathal; Robinson, Oliver; Carmeli, Cristian; Rosales, Carolina Ochoa; Zhang, Yan; Colicino, Elena; Dugué, Pierre-Antoine; Artaud, Fanny; McKay, Gareth J.; Jeong, Ayoung; Mishra, Pashupati P.; Nøst, Therese Haugdahl; Krogh, Vittorio; Panico, Salvatore; Sacerdote, Carlotta; Tumino, Rosario; Palli, Domenico; Matullo, Giuseppe; Guarrera, Simonetta; Gandini, Martina; Bochud, Murielle; Dermitzakis, Emmanouil; Muka, Taulant; Schwartz, Joel; Vokonas, Pantel S.; Just, Allan; Hodge, Allison M.; Giles, Graham G.; Southey, Melissa C.; Hurme, Mikko A.; Young, Ian; McKnight, Amy Jayne; Kunze, Sonja; Waldenberger, Melanie; Peters, Annette; Schwettmann, Lars; Lund, Eiliv; Baccarelli, Andrea; Milne, Roger L.; Kenny, Rose A.; Elbaz, Alexis; Brenner, Hermann; Kee, Frank; Voortman, Trudy; Probst-Hensch, Nicole; Lehtimäki, Terho; Elliot, Paul; Stringhini, Silvia; Vineis, Paolo; Polidoro, Silvia (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-04-14)
      <p>Differences in health status by socioeconomic position (SEP) tend to be more evident at older ages, suggesting the involvement of a biological mechanism responsive to the accumulation of deleterious exposures across the lifespan. DNA methylation (DNAm) has been proposed as a biomarker of biological aging that conserves memory of endogenous and exogenous stress during life. <p>We examined the ...