Blar i forfatter "Waaseth, Marit"
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Pharmacy employees' involvement in safeguarding persons with dementia who use dietary supplements: Results from a survey of Norwegian pharmacies.
Risvoll, Hilde; Musial, Frauke; Halvorsen, Kjell H.; Giverhaug, Trude; Waaseth, Marit (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-07-19)<p><i>Background - </i>Community-dwelling persons with dementia commonly use dietary supplements (DS), often without receiving help with the administration. Patient safety is a concern, as DS-drug interactions and adverse events are potential complications. Since many persons with dementia buy their DS in pharmacies, we investigated Norwegian pharmacy employees’ attitudes and professional practice ... -
Plasma Fatty Acid Ratios Affect Blood Gene Expression Profiles - A Cross-Sectional Study of the Norwegian Women and Cancer Post-Genome Cohort
Olsen, Karina Standahl; Fenton, Christopher Graham; Frøyland, Livar; Waaseth, Marit; Paulssen, Ruth H; Lund, Eiliv (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)High blood concentrations of n-6 fatty acids (FAs) relative to n-3 FAs may lead to a “physiological switch” towards permanent low-grade inflammation, potentially influencing the onset of cardiovascular and inflammatory diseases, as well as cancer. To explore the potential effects of FA ratios prior to disease onset, we measured blood gene expression profiles and plasma FA ratios (linoleic ... -
Potential Safety Issues With Combined Use of Dietary Supplements and Medication – Focus on Interactions
Waaseth, Marit; Rønning, Silje Brækkan; Skeie, Guri (Chapter; Bokkapittel, 2022-11-09)The use of dietary supplements (DS) is widespread and tends to increase with age and female gender. DS use can in some situations represent a safety risk for patients. For instance, concomitant use of medication and dietary supplements, particularly herbal remedies, may cause clinically significant pharmacological interactions. The study underlying this chapter aimed to investigate the prevalence ... -
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 ... -
Self-reported medication information needs among medication users in a general population aged 40 years and above – the Tromsø study
Walquist, Mari Johannessen; Svendsen, Kristian; Garcia, Beate Hennie; Bergmo, Trine Strand; Eggen, Anne Elise; Halvorsen, Kjell H.; Småbrekke, Lars; Ringberg, Unni; Lehnbom, Elin; Waaseth, Marit (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-11-25)Purpose: To determine the prevalence and associated factors of self-reported medication information needs among medication users in a general population aged 40 years and above – The Tromsø Study.<p> <p>Methods: Cross-sectional study of medication users (n=10,231) among participants in the Tromsø Study, a descriptive analysis of questionnaire data and multivariable logistic regression (n=9,194). Results: ... -
Self-reported medication use among coronary heart disease patients showed high validity compared with dispensing data
Pedersen, Elisabeth; Truong, Kieu Nhi Lise; Garcia, Beate Hennie; Halvorsen, Kjell H.; Svendsen, Kristian; Eggen, Anne Elise; Waaseth, Marit (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-02-24)<i>Objective</i> - To validate self-reported use of medications for secondary prevention of coronary heart disease (CHD) in a population-based health study by comparing self-report with pharmacy dispensing data, and explore different methods for defining medication use in prescription databases.<br><br> <i>Study design and setting</i> - Self-reported medication use among participants with CHD ... -
Sex hormones and gene expression signatures in peripheral blood from postmenopausal women - the NOWAC postgenome study
Waaseth, Marit; Olsen, Karina Standahl; Rylander, Charlotta; Lund, Eiliv; Dumeaux, Vanessa (Journal article; Tidsskriftartikkel; Peer reviewed, 2011) -
Use of Selective Serotonin Reuptake Inhibitors – Validity of Self-Report versus Plasma Concentrations and Pharmacy Dispensations – A Cross-Sectional Analysis of the Norwegian Women and Cancer Study
Waaseth, Marit; Havelkova, Martina; Forsdahl, Guro; Lund, Eiliv; Log, Tomas (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-06-30)Purpose: To validate self-reported current use of selective serotonin reuptake inhibitors (SSRI) in the Norwegian Women and Cancer study (NOWAC) and to identify factors associated with discordance between data sources.<p> <p>Material and Methods: This is a cross-sectional record-linkage study comparing SSRI-use derived from four data sources: 1) Specific SSRI questions in the main NOWAC questionnaire, ...