Blar i forfatter "Braaten, Tonje"

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    • No association between physical activity and primary melanoma thickness in a cohort of Norwegian women 

      Perrier, Flavie; Robsahm, Trude Eid; Ghiasvand, Reza; Borch, Kristin Benjaminsen; Braaten, Tonje; Weiderpass, Elisabete; Rüegg, Corina Silvia; Greene, Adele C; Veierød, Marit Bragelien (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-12-21)
      Knowledge about factors associated with melanoma thickness, the most important prognostic factor for localized primary melanoma survival,1 may help reduce the risk of melanoma deaths. Previously reported associations of melanoma thickness with pigmentary characteristics, number of naevi, diet quality and body mass index (BMI)2–4 may be explained by behavioural and biological mechanisms. Physical ...

    • Nut intake and 5-year changes in body weight and obesity risk in adults: results from the EPIC-PANACEA study 

      Freisling, Heinz; Noh, Hwayoung; Slimani, Nadia; Chajès, Véronique; May, Anne M.; Peeters, Petra H; Weiderpass, Elisabete; Cross, Amanda J.; Skeie, Guri; Jenab, Mazda; Mancini, Francesca Romana; Boutron-Ruault, Marie-Christine; Fagherazzi, Guy; Katzke, Verena A.; Kühn, Tilman; Steffen, Annika; Boeing, Heiner; Tjønneland, Anne; Kyrø, Cecilie; Hansen, Camilla P.; Overvad, Kim; Duell, Eric J.; Redondo-Sánchez, Daniel; Amiano, Pilar; Navarro, Carmen; Barricarte, Aurelio; Perez-Cornago, Aurora; Tsilidis, Konstantinos K.; Aune, Dagfinn; Ward, Heather; Trichopoulou, Antonia; Naska, Androniki; Orfanos, Philippos; Masala, Giovanna; Agnoli, Claudia; Berrino, Franco; Tumino, Rosario; Sacerdote, Carlotta; Mattiello, Amalia; Bueno-De-Mesquita, Hendrik Bastiaan; Ericson, Ulrika; Sonestedt, Emily; Winkvist, Anna; Braaten, Tonje; Romieu, Isabelle; Sabaté, Joan (Journal article; Manuskript; Tidsskriftartikkel; Peer reviewed; Preprint, 2017-07-21)
      <p><i>Purpose</i>: There is inconsistent evidence regarding the relationship between higher intake of nuts, being an energy-dense food, and weight gain. We investigated the relationship between nut intake and changes in weight over 5 years.</p> <p><i>Methods</i>: This study includes 373,293 men and women, 25–70 years old, recruited between 1992 and 2000 from 10 European countries in the European ...

    • Optimal starting point for antiretroviral HIV treatment in a town in Cameroon: a randomised controlled study 

      Holtedahl, Knut A.; Salpou, Daniel; Braaten, Tonje; Berved, Zogoi (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)

    • Overall lifestyle changes in adulthood are associated with cancer incidence in the Norwegian Women and Cancer Study (NOWAC) - a prospective cohort study 

      Chen, Sairah Lai Fa; Nøst, Therese Haugdahl; Botteri, Edoardo; Ferrari, Pietro; Braaten, Tonje; Sandanger, Torkjel M; Borch, Kristin Benjaminsen (Journal article; Tidsskriftartikkel, 2023-04-03)
      <p><i>Background:</i> Cancer is a leading cause of premature death worldwide and incidence is expected to rise in the coming decades. Many cohort studies, measuring lifestyle factors at one time-point, have observed that overall healthy lifestyles were inversely related to cancer incidence. However, there is little knowledge on the impact of lifestyle modification within adulthood. <p><i>Methods:</i> ...

    • Physical activity and mortality among Norwegian women : the Norwegian Women and Cancer Study 

      Borch, Kristin Benjaminsen; Braaten, Tonje; Lund, Eiliv; Weiderpass, Elisabete (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      Physical activity (PA) and its relationship with all-cause mortality suggest a strong and consistent inverse association. This study prospectively investigated the association between PA level and mortality among participants of the Norwegian Women and Cancer (NOWAC) Study. A total of 66,136 NOWAC participants were followed-up until December 31st 2008. PA level and possible confounding factors ...

    • Physical activity and risk of endometrial cancer in the Norwegian Women and Cancer (NOWAC) study 

      Borch, Kristin Benjaminsen; Weiderpass, Elisabete; Braaten, Tonje; Jareid, Mie; Gavrilyuk, Oxana; Licaj, Idlir (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-01-20)
      Few studies have investigated the association between endometrial cancer and physical activity (PA) using repeated measures of PA and different subtypes of endometrial cancer. We aimed to investigate the association between endometrial cancer and PA level at two points in time in women with different body mass index (BMI) profiles, and to calculate the population attributable fraction (PAF) of ...

    • Physical activity and the risk of postmenopausal breast cancer - The Norwegian Women and Cancer Study 

      Borch, Kristin Benjaminsen; Lund, Eiliv; Braaten, Tonje; Weiderpass, Elisabete (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)

    • Physical activity before and after breast cancer diagnosis and survival - the Norwegian women and cancer cohort study 

      Borch, Kristin Benjaminsen; Braaten, Tonje; Lund, Eiliv; Weiderpass, Elisabete (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-12-16)
      Background: The main aim of this study was to investigate pre- and post-diagnostic physical activity (PA) levels, as well as changes in pre- and post-diagnostic PA levels, and their association with all-cause and breast cancer-specific mortality in women with breast cancer. Our study will add to the knowledge on whether a modifiable behavior such as PA can improve survival. <p>Methods: We included ...

    • Physical activity patterns and the risk of colorectal cancer in the Norwegian Women and Cancer study: A population-based prospective study 

      Oyeyemi, Sunday Oluwafemi; Braaten, Tonje; Licaj, Idlir; Lund, Eiliv; Borch, Kristin Benjaminsen (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-12-04)
      <p><I>Introduction</I>: Colorectal cancer (CRC) remains the second most common cancer in women worldwide. Physical activity (PA) has been associated with reduced risk of CRC; however, this has been demonstrated more consistently in men, while results of studies in women have been largely equivocal. We aimed to further examine the relationship between PA patterns and the risk of CRC in women, using ...

    • Pooled analysis of active cigarette smoking and invasive breast cancer risk in 14 cohort studies 

      Gaudet, Mia M.; Carter, Brian D.; Brinton, Louise A.; Falk, Roni T.; Gram, Inger Torhild; Luo, Juhua; Milne, Roger L.; Nyante, Sarah J.; Weiderpass, Elisabete; Freeman, Laura E. Beane; Sandler, Dale P.; Robien, Kim; Anderson, Kristin E.; Giles, Graham G.; Chen, Wendy Y.; Feskanich, Diane; Braaten, Tonje; Isaacs, Claudine; Butler, Lesley M.; Koh, Woon-Puay; Wolk, Alicja; Adami, Hans Olov; White, Emily; Margolis, Karen L.; Thun, Michael J.; Gapstur, Susan M. (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-12-19)
      <p><i>Background</i>: The 2014 US Surgeon General’s report noted research gaps necessary to determine a causal relationship between active cigarette smoking and invasive breast cancer risk, including the role of alcohol consumption, timing of exposure, modification by menopausal status and heterogeneity by oestrogen receptor (ER) status.</p> <p><i>Methods</i>: To address these issues, we pooled ...

    • The predictive effect of body mass index on type 2 diabetes in the Norwegian women and cancer study 

      Sheikh, Mashhood Ahmed; Lund, Eiliv; Braaten, Tonje (Journal article; Tidsskriftartikkel; Peer reviewed, 2014-10-24)
      Background Several studies have analyzed the association of body mass index (BMI) with either the prevalence or incidence of type 2 diabetes (T2D), but no study from Europe or North America has yet analyzed and compared the association of BMI with both incident and prevalent T2D cases. Methods Stratified logistic regression was used to calculate odds ratios (OR), and stratified Cox proportional ...

    • Prevalence of self-reported myocardial infarction in Sami and non-Sami populations: the SAMINOR study 

      Eliassen, Bent-Martin; Graff-Iversen, Sidsel; Braaten, Tonje; Melhus, Marita; Broderstad, Ann Ragnhild (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-01-12)

    • 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 ...

    • Relationships between metabolic markers and obesity measures in two populations that differ in stature - The SAMINOR Study 

      Michalsen, Vilde Lehne; Braaten, Tonje; Kvaløy, Kirsti; Melhus, Marita; Broderstad, Ann Ragnhild (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-02-03)
      <i>Background</i> - The relationships between metabolic markers and obesity measures may differ by ethnicity, sex, and height. Questions have been posed whether these relationships differ by ethnicity in the population in Northern Norway, but this has not been explored yet.<p><p> <i>Objectives</i> - Investigate the relationships between metabolic markers and obesity measures in Sami and non‐Sami ...

    • Risikofaktorer og risiko for hjerte- og karsykdommer 

      Siri, Susanna Ragnhild Andersdatter; Braaten, Tonje; Jacobsen, Bjarne K. (Chapter; Bokkapittel, 2022-03-16)
      Kapittelet beskriver risiko for hjerte- og karsykdommer blant samer og ikke-samer i Nord-Norge og bygger i hovedsak på tre artikler som er inkludert i doktorgradsavhandlingen til Susanna Ragnhild Andersdatter Siri. Datagrunnlaget er informasjon fra spørreskjema, kliniske undersøkelser og blodprøver som ble samlet inn ved helse- og levekårsundersøkelsene SAMINOR 1 og 2, som ble utført i henholdsvis ...

    • Risk of lung cancer and physical activity by smoking status and body mass index, the Norwegian Women and Cancer Study 

      Borch, Kristin Benjaminsen; Weiderpass, Elisabete; Braaten, Tonje; Hansen, Merethe Selnes; Licaj, Idlir (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-10-01)
      We aimed to investigate physical activity (PA) and risk of different histological subtypes of lung cancer according to smoking status and body mass index using repeated measurements in a large cohort of women in Norway. The study sample for the multiple imputation analyses consisted of 86,499 and for the complete-case analysis 80,802 women. Repeated measurements of PA level, smoking habits, weight, ...

    • The self-management work of food hypersensitivity 

      Jakobsen, Monika Dybdahl; Obstfelder, Aud; Braaten, Tonje; Abelsen, Birgit (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-03-05)
      Background - Food hypersensitivity (FH) has received considerable attention in the scientific community in recent years. However, little attention has been given to the efforts people make to manage their FH. We aimed to explore these efforts by using Normalization Process Theory, which is a conceptual framework formerly used to describe the self-management ‘work’ of long-term conditions.<p> <p>Methods ...

    • Self-Reported Food Hypersensitivity: Prevalence, Characteristics, and Comorbidities in the Norwegian Women and Cancer Study 

      Jakobsen, Monika Dybdahl; Braaten, Tonje; Obstfelder, Aud; Abelsen, Birgit (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-12-16)
      <b>Background:</b> This study aims to investigate the prevalence of self-reported food hypersensitivity, (SFH), the characteristics of women with SFH, and whether SFH is associated with multiple health complaints among the participants of the Norwegian Women and Cancer study (NOWAC).<br> <b>Methods:</b> We conducted a cross-sectional study among 64,316 women aged 41–76 years. The women were ...

    • Sex differences in risk of smoking-related lung cancer: results from a cohort of 600,000 Norwegians 

      Hansen, Merethe Selnes; Licaj, Idlir; Braaten, Tonje; Langhammer, Arnulf; Marchand, Loic Le; Gram, Inger Torhild (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-10-26)
      Whether women are more susceptible than men to smoking-related lung cancer has been a topic of controversy. To address this question, we compared risks of lung cancer associated with smoking by sex. Altogether, 585,583 participants from 3 Norwegian cohorts (Norwegian Counties Study, 40 Years Study, and Cohort of Norway (CONOR) Study) were followed until December 31, 2013, through linkage of data to ...

    • Sickness absence patterns and trends in the health care sector: 5-year monitoring of female municipal employees in the health and care sectors in Norway and Denmark 

      Krane, Line; Johnsen, Roar; Fleten, Nils; Nielsen, Claus Vinther; Stapelfeldt, Christina Malmose; Jensen, Chris; Braaten, Tonje (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)