Blar i NTNU Open på forfatter "Sigurdsson, Johann Agust"
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A 32-year longitudinal study of alcohol consumption in Swedish women: Reduced risk of myocardial infarction but increased risk of cancer.
Hange, Dominique; Sigurdsson, Johann Agust; Björkelund, Cecilia; Sundh, Valter; Bengtsson, Calle (Peer reviewed; Journal article, 2015)Objective. To assess associations between the intake of different types of alcoholic beverages and the 32-year incidence of myocardial infarction, stroke, diabetes, and cancer, as well as mortality, in a middle-aged female ... -
Association between prescription of hypnotics/anxiolytics and mortality in multimorbid and non-multimorbid patients: a longitudinal cohort study in primary care.
Linnet, Kristjan; Sigurdsson, Johann Agust; Tomasdottir, Margret Olafia; Sigurdsson, Emil Larus; Gudmundsson, Lárus S (Journal article; Peer reviewed, 2019)ObjectivesTo assess the risk of mortality in primary care patients, multimorbid (≥2 chronic conditions) or not, prescribed hypnotics/anxiolytics.DesignA longitudinal cohort studysettingPrimary healthcare in the Reykjavik ... -
Current European guidelines for management of arterial hypertension: Are they adequate for use in primary care? Modelling study based on the Norwegian HUNT 2 population
Petursson, Halfdan; Getz, Linn; Sigurdsson, Johann Agust; Hetlevik, Irene (Journal article; Peer reviewed, 2009)Background: Previous studies indicate that clinical guidelines using combined risk evaluation for cardiovascular diseases (CVD) may overestimate risk. The aim of this study was to model and discuss implementation of the ... -
Does ‘existential unease’ predict adult multimorbidity? Analytical cohort study on embodiment based on the Norwegian HUNT population
Tomasdottir, Margret Olafia; Sigurdsson, Johann Agust; Petursson, Halfdan; Kirkengen, Anna Luise; Nilsen, Tom Ivar Lund; Hetlevik, Irene; Getz, Linn Okkenhaug (Journal article; Peer reviewed, 2016)Objectives: Multimorbidity is prevalent, and knowledge regarding its aetiology is limited. The general pathogenic impact of adverse life experiences, comprising a wide-ranging typology, is well documented and coherent with ... -
Drug use during early pregnancy: Cross-sectional analysis from the childbirth and health study in primary care in Iceland
Axelsdottir, Thury Osk; Sigurdsson, Emil Larus; Gudmundsdottir, Anna Margret; Kristjansdottir, Hildur; Sigurdsson, Johann Agust (Journal article; Peer reviewed, 2014)Objective. To analyse drug use in early pregnancy with special focus on socio-demographic factors associated with psychotropic and analgesic drug use. Design. Cross-sectional study. Setting and subjects. A total of 1765 ... -
Gatekeeping and referrals to cardiologists: General practitioners' views on interactive communications
Bjornsson, Steinar; Sigurdsson, Johann Agust; Svavarsdottir, Alma Eir; Gudmundsson, Gunnar Helgi (Journal article; Peer reviewed, 2013)Objective. Referrals to specialists have not been compulsory in Iceland since 1984. In 2006, referrals were again required for patients to receive reimbursement for part of the cost of appointments with cardiologists. The ... -
History of violence and subjective health of mother and child. From The Childbirth and Health Cohort Study in Primary Care, Iceland
Tomasdottir, Margret Olafia; Kristjansdottir, Hildur; Bjørnsdottir, Amalia; Getz, Linn Okkenhaug; Steingrimsdottir, Thora; Olafsdottir, OA; Sigurdsson, Johann Agust (Journal article; Peer reviewed, 2016)Objective: To study the self-reported prevalence of experienced violence among a cohort of women about two years after giving birth, their health during pregnancy, pregnancy outcomes and their experience of their child’s ... -
Multimorbidity and use of hypnotic and anxiolytic drugs: Cross-sectional and follow-up study in primary healthcare in Iceland
Linnet, Kristjan; Gudmundsson, Larus J.; Birgisdottir, Frida G; Sigurdsson, Emil Larus; Jóhannsson, Magnús, Lyfjastofnun; Tomasdottir, Margret Olafia; Sigurdsson, Johann Agust (Peer reviewed; Journal article, 2016)Background The prevalence of multimorbidity is increasing worldwide, presumably leading to an increased use of medicines. During the last decades the use of hypnotic and anxiolytic benzodiazepine derivatives and related ... -
Multimorbidity in the Norwegian HUNT population: An epidemiological study with reference to the concept allostatic load
Tómasdóttir, Margrét Ólafía (Doctoral theses at NTNU;2017:330, Doctoral thesis, 2017)Norsk sammendrag Multimorbiditet i den norske HUNT populasjonen En epidemiologisk studie med referanse til begrepet allostatisk belastning Bakgrunn: Multimorbiditet defineres som to eller flere kroniske sykdommer/tilstander ... -
Reforming disease definitions: A new primary care led, people-centred approach
Moynihan, Ray; Brodersen, John; Heath, Iona; Johansson, Minna; Kuehlein, Thomas; Minue-Lorenzo, Sergio; Petursson, Halfdan; Pizzanelli, Miguel; Reventlow, Susanne; Sigurdsson, Johann Agust; Stavdal, Anna; Treadwell, Julian; Glasziou, Paul (Journal article; Peer reviewed, 2019)Expanding disease definitions are causing more and more previously healthy people to be labelled as diseased, contributing to the problem of overdiagnosis and related overtreatment. Often the specialist guideline panels ... -
Self Reported Childhood Difficulties, Adult Multimorbidity and Allostatic Load. A Cross-Sectional Analysis of the Norwegian HUNT Study
Tomasdottir, Margret Olafia; Sigurdsson, Johann Agust; Petursson, Halfdan; Kirkengen, Anna Luise; Krokstad, Steinar; McEwen, Bruce; Hetlevik, Irene; Getz, Linn (Journal article; Peer reviewed, 2015)Background: Multimorbidity receives increasing scientific attention. So does the detrimental health impact of adverse childhood experiences (ACE). Aetiological pathways from ACE to complex disease burdens are under ... -
Smoking during pregnancy. Childbirth and Health Study in Primary Care in Iceland
Erlingsdottir, Asthildur; Sigurdsson, Emil Larus; Jonsson, Jon Steinar; Kristjansdottir, Hildur; Sigurdsson, Johann Agust (Journal article; Peer reviewed, 2014)Objective. To study the prevalence and possible predictors for smoking during pregnancy in Iceland. Design. A cross-sectional study. Setting. Twenty-six primary health care centres in Iceland 2009–2010. Subjects. Women ... -
Use of pregnancy ultrasound before the 19th week scan: an analytical study based on the Icelandic Childbirth and Health Cohort
Halle, Kristine Flo; Fjose, Maria; Kristjansdottir, Hildur; Björnsdottir, Amalia; Getz, Linn Okkenhaug; Tomasdottir, Margret Olafia; Sigurdsson, Johann Agust (Journal article; Peer reviewed, 2018)Background and aim Use of ultrasound scans early in pregnancy is increasing, but we have limited knowledge about the actual prevalence, associated decision-making and impact on expectant women/couples in a general population. ...