Bilde av Løvsletten, Ola
Bilde av Løvsletten, Ola
Department of Community Medicine ola.lovsletten@uit.no You can find me here

Ola Løvsletten


Researcher (PhD in statistics).

Job description

Statistician working for the Tromsø Study. Tasks include providing data for research projects, assist research projects with statistical power calculations, importing new data to the Tromsø Study database, quality control, updating registers, as well as statistical analyses and reports.


  • Sweta Tiwari, Ester Cerin, Tom Wilsgaard, Ola Løvsletten, Anne Sameline Grimsgaard, Laila Arnesdatter Hopstock et al.:
    Lifestyle factors as mediators of area-level socioeconomic differentials in mental health and cognitive function: The Tromsø Study
    Journal of Epidemiology and Community Health 2023 ARKIV / DOI
  • Edvard Hamnvik Sagelv, Laila Arnesdatter Hopstock, Bente Morseth, Bjørge Hermann Hansen, Jostein Steene-Johannessen, Jonas Lars Johansson et al.:
    Device-measured physical activity, sedentary time, and risk of all-cause mortality: an individual participant data analysis of four prospective cohort studies
    British Journal of Sports Medicine 2023 ARKIV / DOI
  • Åse Mari Moe, Elinor Ytterstad, Laila Arnesdatter Hopstock, Ola Løvsletten, Monica Hauger Carlsen, Sigrunn Holbek Sørbye :
    Associations and predictive power of dietary patterns on metabolic syndrome and its components
    NMCD. Nutrition Metabolism and Cardiovascular Diseases 31. October 2023 ARKIV / DOI
  • Ola Løvsletten, Tormod Brenn :
    Healthy Choices in Midlife Predict Survival to Age 85 in Women: The Tromsø Study 1979–2019
    International Journal of Environmental Research and Public Health (IJERPH) 2022 ARKIV / DOI
  • Åse Mari Moe, Sigrunn Holbek Sørbye, Laila Arnesdatter Hopstock, Monica Hauger Carlsen, Ola Løvsletten, Elinor Ytterstad :
    Identifying dietary patterns across age, educational level and physical activity level in a cross-sectional study: the Tromsø Study 2015 - 2016
    BMC Nutrition 2022 ARKIV / DOI
  • Kamila Kahramonzhonovna Kholmatova, Alexandra Krettek, David Adrew Leon, Sofia Malyutina, Sarah Cook, Laila Arnesdatter Hopstock et al.:
    Obesity Prevalence and Associated Socio-Demographic Characteristics and Health Behaviors in Russia and Norway
    International Journal of Environmental Research and Public Health (IJERPH) 2022 ARKIV / DOI
  • Sweta Tiwari, Ester Cerin, Tom Wilsgaard, Ola Løvsletten, Inger Njølstad, Sameline Grimsgaard et al.:
    Lifestyle factors as mediators of area-level socio-economic differentials in cardiovascular disease risk factors. The Tromsø Study
    SSM - Population Health 2022 ARKIV / DOI
  • Tormod Brenn, Ola Løvsletten :
    Mid-life alcohol consumption and survival to age 90 in men: The Tromsø Study 1979–1980 with follow-up to 2019
    Scandinavian Journal of Public Health 2022 ARKIV / DOI
  • Ola Løvsletten, Inger Njølstad, Tom Wilsgaard, Laila Arnesdatter Hopstock, Bjarne K. Jacobsen, Kaare Harald Bønaa et al.:
    Is the ongoing obesity epidemic partly explained by concurrent decline in cigarette smoking? Insights from a longitudinal population study. The Tromsø Study 1994–2016
    Preventive Medicine 2021 ARKIV / DOI
  • Martin Wibe Rypdal, Kristoffer Rypdal, Ola Løvsletten, Sigrunn Holbek Sørbye, Elinor Ytterstad, Filippo Maria Bianchi :
    Estimation of Excess Mortality and Years of Life Lost to COVID-19 in Norway and Sweden between March and November 2020
    International Journal of Environmental Research and Public Health (IJERPH) 2021 ARKIV / DOI
  • Martin Wibe Rypdal, Veronika Gjertsen Rypdal, Per Kristen Jakobsen, Elinor Ytterstad, Ola Løvsletten, Claus Klingenberg et al.:
    Modelling suggests limited change in the reproduction number from reopening Norwegian kindergartens and schools during the COVID-19 pandemic
    PLOS ONE 2021 ARKIV / DOI
  • Edvard Hamnvik Sagelv, Ulf Ekelund, Laila Arnesdatter Hopstock, Marius Steiro Fimland, Ola Løvsletten, Tom Wilsgaard et al.:
    The bidirectional associations between leisure time physical activity change and body mass index gain. The Tromsø Study 1974–2016
    International Journal of Obesity 2021 ARKIV / DOI
  • Ola Løvsletten, Bjarne Koster Jacobsen, Sameline Grimsgaard, Inger Njølstad, Tom Wilsgaard, Maja-Lisa Løchen et al.:
    Prevalence of general and abdominal obesity in 2015–2016 and 8-year longitudinal weight and waist circumference changes in adults and elderly: the Tromsø Study
    BMJ Open 2020 ARKIV / DOI
  • Edvard Hamnvik Sagelv, Ulf Ekelund, Laila Arnesdatter Hopstock, Nils Abel Aars, Marius Steiro Fimland, Bjarne K. Jacobsen et al.:
    Do declines in occupational physical activity contribute to population gains in body mass index? Tromsø Study 1974–2016
    Occupational and Environmental Medicine 2020 ARKIV / DOI
  • Ola Løvsletten :
    Consistency of detrended fluctuation analysis
    Physical Review E. Statistical, Nonlinear, and Soft Matter Physics 2017 DOI
  • Ola Løvsletten, Martin wibe Rypdal :
    Statistics of Regional Surface Temperatures after 1900: Long-Range versus Short-Range Dependence and Significance of Warming Trends
    Journal of Climate 2016 ARKIV / DOI
  • Martin wibe Rypdal, Ola Løvsletten :
    Modeling electricity spot prices using mean-reverting multifractal processes
    Physica A: Statistical Mechanics and its Applications 2013 DOI
  • Martin wibe Rypdal, Espen Sirnes, Ola Løvsletten, Kristoffer Rypdal :
    Assessing market uncertainty by means of a time-varying intermittency parameter for asset price fluctuations
    Physica A: Statistical Mechanics and its Applications 2013 DOI
  • Ola Løvsletten, Martin wibe Rypdal :
    Approximated maximum likelihood estimation in multifractal random walks
    Physical Review E. Statistical, Nonlinear, and Soft Matter Physics 2012 DOI
  • Anne Sameline Grimsgaard, Ola Løvsletten, Tormod Brenn :
    Kvinner og menn i Tromsø viser veien til et langt liv
    2023
  • Anne Sameline Grimsgaard, Ola Løvsletten :
    Kan overvektsepidemien skyldes røykeslutt?
    2023
  • Ola Løvsletten :
    Trening gir effekt hele livet
    16. September 2022
  • Ola Løvsletten :
    Harald (77) kan løpe åtte timer på en dag. Spesielt én grunn gjør det mulig, ifølge forskere.
    16. October 2022 FULLTEKST
  • Edvard Hamnvik Sagelv, Laila Arnesdatter Hopstock, Bente Morseth, Bjørge Hermann Hansen, Jostein Steene-Johannessen, Sigmund Alfred Anderssen et al.:
    Physical activity and mortality: Effect modification by sedentary time. An individual participant data analysis of four cohorts with accelerometry measured physical activity
    2022
  • Sweta Tiwari, Ester Cerin, Tom Wilsgaard, Ola Løvsletten, Inger Njølstad, Sameline Grimsgaard et al.:
    Risk factors for cardiovascular disease and psycho-socioeconomic determinants according to various living areas with lifestyle factors as mediators. The Tromsø Study
    Dr.med. - Norwegian Journal of Epidemiology. Suppl. 04. November 2021
  • Ola Løvsletten, Bjarne K. Jacobsen, Sameline Grimsgaard, Inger Njølstad, Tom Wilsgaard, Maja-Lisa Løchen et al.:
    Has the prevalence of obesity increased? Distribution of waist circumference and body mass index in the Tromsø Study 2015-2016
    2021
  • Laila Arnesdatter Hopstock, Marie Wasmuth Lundblad, Petja Lyn Langholz, Ola Løvsletten :
    Nye utviklingstrekk: røyk og fedme
    2021 OMTALE
  • Ola Løvsletten, Inger Njølstad, Kaare Harald Bønaa, Anne Elise Eggen, Anne-Sofie Furberg, Sameline Grimsgaard et al.:
    Is the ongoing obesity epidemic partly explained by concurrent decline in cigarette smoking? Insights from a longitudinal population study. the Tromsø Study 1994-2016
    2021
  • Inger Njølstad, Kaare Harald Bønaa, Anne Elise Eggen, Anne-Sofie Furberg, Sameline Grimsgaard, Laila Arnesdatter Hopstock et al.:
    Is the ongoing overweight and obesity epidemic partly explained by concurrent decline in cigarette smoking The Tromsø Study 1994-2016
    2019
  • Inger Njølstad, Kaare Harald Bønaa, Anne Elise Eggen, Anne-Sofie Furberg, Sameline Grimsgaard, Laila Arnesdatter Hopstock et al.:
    Is the ongoing overweight/obesity epidemic partly explained by concurrent decline in smoking?
    2019
  • Laila Arnesdatter Hopstock, Ola Løvsletten, Heidi Johansen, Sweta Tiwari, Inger Njølstad, Maja-Lisa Løchen :
    Folkehelserapport: Den sjuende Tromsøundersøkelsen 2015-16
    2019 FULLTEKST
  • Ola Løvsletten, Inger Njølstad, Maja-Lisa Løchen :
    Sosiale ulikheter i helse. Rapport til Tromsø kommune om risikofaktorer i geografiske områder
    2018
  • Martin wibe Rypdal, Erik Bryhn Myklebust, Kristoffer Rypdal, Hege-Beate Fredriksen, Ola Løvsletten, Tine Nilsen :
    Early-warning signals for tipping points in strongly driven systems with many characteristic time scales
    2016
  • Ola Løvsletten :
    Detrended fluctuation analysis with missing data
    2016
  • Ola Løvsletten :
    Theory and application of Detrended Fluctuation Analysis
    2016
  • Ola Løvsletten, Martin wibe Rypdal, Kristoffer Rypdal, Hege-Beate Fredriksen :
    Statistics of regional surface temperatures post year 1900. Long-range versus short-range dependence, and significance of warming trends.
    2015
  • Tine Nilsen, Kristoffer Rypdal, Hege-Beate Fredriksen, Martin wibe Rypdal, Ola Løvsletten :
    Is there a break in scaling on centennial time scale in Holocene temperature records
    2015
  • Hege-Beate Fredriksen, Ola Løvsletten, Martin wibe Rypdal, Kristoffer Rypdal :
    The statistical differences between the gridded temperature datasets, and their implications for stochastic modelling
    2015
  • Vibeke Os, Ola Løvsletten :
    Tilfeldighetenes spill – klima, renter og strømpriser
    23. February 2015 FULLTEKST
  • Hege-Beate Fredriksen, Ola Løvsletten, Martin wibe Rypdal, Kristoffer Rypdal :
    The statistical differences between the gridded temperature datasets, and their implications for stochastic modelling
    2014
  • Ola Løvsletten, Martin wibe Rypdal :
    From Bachelier’s Brownian motion to Mandelbrot’s multifractal model of asset returns and beyond
    2014
  • Ola Løvsletten, Martin wibe Rypdal, Kristoffer Rypdal, Hege-Beate Fredriksen :
    Significance-testing of trends: Long-range dependence and model selection
    2014
  • Hege-Beate Fredriksen, Kristoffer Rypdal, Martin wibe Rypdal, Ola Løvsletten :
    Spatial scale dependence of long-range memory properties of Earth surface temperature
    2013
  • Ola Løvsletten, Martin wibe Rypdal :
    Multifractal inference
    2012
  • Martin wibe Rypdal, Kristoffer Rypdal, Lene Østvand, Ola Løvsletten :
    Stochastic modeling of global temperature
    2012 FULLTEKST
  • Lene Østvand, Ola Løvsletten, Martin wibe Rypdal, Kristoffer Rypdal :
    Maximum Likelihood Estimates of trend- and memory-coefficients in climatic time series
    2012
  • Lene Østvand, Ola Løvsletten, Martin wibe Rypdal, Kristoffer Rypdal :
    Maximum Likelihood Estimates of trend- and memory-coefficients in climatic time series
    2012
  • Ola Løvsletten, Martin wibe Rypdal :
    Multifractal modelling in finance
    2011
  • Ola Løvsletten, Martin wibe Rypdal :
    Multifractal modelling of short-term interest rates
    2010

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