• Adolescent Alcohol Use and Binge Drinking: An 18-year Trend Study of Prevalence and Correlates 

      Pedersen, Willy; von Soest, Tilmann (Journal article; Peer reviewed, 2015-01-03)
      Aims: Several studies suggest a rapid decrease of alcohol use among adolescents after the turn of the century. With decreasing prevalence rates of smokers, a so-called hardening may have taken place, implying that remaining ...
    • Adolescents from affluent city districts drink more alcohol than others 

      Pedersen, Willy; Bakken, Anders; von Soest, Tilmann (Addiction;110(10), Journal article; Peer reviewed, 2015-07-14)
      Aims To estimate the level of alcohol consumption and problems among adolescents in city districts in Oslo, Norway with different socio-economic composition; to test whether differences in alcohol consumption are related ...
    • Compliance with infection control rules among adolescents in Oslo during the COVID-19 pandemic 

      Von Soest, Tilmann; Pedersen, Willy; Bakken, Anders; Sletten, Mira Aaboen (Journal of the Norwegian Medical Association;, Journal article; Peer reviewed, 2020-06-29)
      Background: Effective infection control is crucial for combatting the COVID-19 pandemic. We investigated whether adolescents in Oslo reported compliance with the Norwegian infection control rules during the pandemic and ...
    • From ecstasy to MDMA: Recreational drug use, symbolic boundaries and drug trends 

      Edland-Gryt, Marit; Sandberg, Sveinung; Pedersen, Willy (Journal article; Peer reviewed, 2017)
      Background Ecstasy pills with MDMA as the main ingredient were introduced in many European countries in the 1980s, and were often linked to the rave and club scenes. However, use gradually levelled off, in part as a ...
    • Hardcore adolescent smokers? An examination of the hardening hypothesis by using survey data from two Norwegian samples collected eight years apart 

      von Soest, Tilmann; Pedersen, Willy (Journal article; Peer reviewed, 2014)
      Introduction. The hardening hypothesis stat es that with declining prevalence and growing social disapproval of smoking, remaining smokers are more unwilling and unable to quit, as well as increasingly characterized ...
    • How is low parental socioeconomic status associated with future smoking and nicotine dependence in offspring? A population-based longitudinal 13-year follow-up 

      Pedersen, Willy; von Soest, Tilmann (Scandinavian Journal of Public Health;Volume 45, Issue 1, Journal article; Peer reviewed, 2017-02)
      Aims: Low socioeconomic status (SES) characterizes smoking and nicotine dependence in adult samples. However, less is known about how parental SES is linked to smoking in offspring and potential mechanisms at work. ...
    • Hva de snakker om når de snakker om stress 

      Pedersen, Willy; Eriksen, Ingunn Marie (Norsk sosiologisk tidsskrift;Årgang 3, nr. 2-2019, Journal article; Peer reviewed, 2019)
      Forskere har kartlagt såkalte stressorer, men få har undersøkt hvordan de formes av klasse og sosial kontekst. Vi spør: Hvordan utvikles skolerelatert stress i to svært ulike skolemiljøer i Oslo? Skole K [som konnoterer ...
    • Immigration and the decline in adolescent binge drinking 

      Rogne, Adrian Farner; Pedersen, Willy; Bakken, Anders (Drug and Alcohol Dependence;Volume 203, 1 October 2019, Journal article; Peer reviewed, 2019-05-28)
      Background: Adolescent alcohol consumption has fallen in most Western countries over the past two decades, while immigrants and children of immigrants from low-consumption countries constitute a growing proportion of ...
    • Intelligence, alcohol consumption, and adverse consequences: A study of young Norwegian men 

      Rogne, Adrian Farner; Pedersen, Willy; Von Soest, Tilmann (Peer reviewed; Journal article, 2020)
      Research suggests that intelligence is positively related to alcohol consumption. However, some studies of people born around 1950, particularly from Sweden, have reported that higher intelligence is associated with lower ...
    • Life satisfaction among adolescents before and during the COVID-19 pandemic 

      Von Soest, Tilmann; Bakken, Anders; Pedersen, Willy; Sletten, Mira Aaboen (Journal of the Norwegian Medical Association;, Journal article; Peer reviewed, 2020-06-29)
      Background: The COVID-19 pandemic in the spring of 2020 involved closure of schools and strict limitations on social contact. The study examines whether this had an effect on the life satisfaction and subjective well-being ...
    • Livstilfredshet blant ungdom før og under covid-19-pandemien 

      Von Soest, Tilmann; Bakken, Anders; Pedersen, Willy; Sletten, Mira Aaboen (Tidsskrift for Den norske legeforening;Utgave 10, Journal article; Peer reviewed, 2020-06-16)
      Background: The COVID-19 pandemic in the spring of 2020 involved closure of schools and strict limitations on social contact. The study examines whether this had an effect on the life satisfaction and subjective well-being ...
    • Mer bruk av cannabis blant Oslo-ungdom: Hvem er i risikosonen? 

      Pedersen, Willy; Bakken, Anders; von Soest, Tilmann (Norsk sosiologisk tidsskrift;Årgang 3, nr. 6-2019, Journal article; Peer reviewed, 2019)
      Cannabis ble introdusert i Norge på 1960-tallet, i kjølvannet av ungdomsopprøret som rullet over den vestlige verden. Bruken var stabil på 1970- og 80-tallet, men økte kraftig på 1990-tallet og ble da knyttet til teorien ...
    • Neighborhood or School? Influences on Alcohol Consumption and Heavy Episodic Drinking Among Urban Adolescents 

      Pedersen, Willy; Bakken, Anders; von Soest, Tilmann (Journal of Youth and Adolescence;, Journal article; Peer reviewed, 2017-11-28)
      Little is known about the relative influences of neighborhood and school on the alcohol socialization process. Survey data from the Young in Oslo Study (N = 10,038, mean age 17.1 years, 52% girls) were used to investigate ...
    • Oslo-ungdom i koronatiden. En studie av ungdom under covid-19-pandemien 

      Bakken, Anders; Pedersen, Willy; von Soest, Tilmann; Sletten, Mira Aaboen (2020;12, Research report, 2020)
      Rapporten oppsummerer hovedfunnene fra undersøkelsen «Oslo-ungdom i koronatiden». Den kartlegger ungdoms hverdagsliv mens covid-19-pandemien preget landet på det mest intense våren 2020. Undersøkelsen belyser hvordan ungdom ...
    • Perceptions of harms associated with tobacco, alcohol and cannabis in students from the UK and Norway 

      Pedersen, Willy; Fjær, Eivind Grip; Gray, Paul; von Soest, Tilmann (Journal article; Peer reviewed, 2016)
      Introduction: International drug policy has traditionally been based on the premise that illegal drugs are more harmful than legal substances. Here, we investigate how students in the UK and Norway now perceive possible ...
    • Sex for overlevelse eller skyggebilder av kjærlighet 

      Hegna, Kristinn; Pedersen, Willy (NOVA Rapport 5/02, Rapport, 2002)
      Rapporten beskriver salg og bytte av seksuelle tjenester utført av ungdom under 18 år. Fra før finnes det lite litteratur og kunnskap om dette emnet - både i norsk og internasjonal sammenheng. I denne rapporten presenteres ...
    • Sex for overlevelse eller skyggebilder av kjærlighet 

      Hegna, Kristinn; Pedersen, Willy (NOVA Rapport 5/02, Rapport, 2002)
      Rapporten beskriver salg og bytte av seksuelle tjenester utført av ungdom under 18 år. Fra før finnes det lite litteratur og kunnskap om dette emnet - både i norsk og internasjonal sammenheng. I denne rapporten presenteres ...
    • Smittevern blant Oslo-ungdom under covid-19-pandemien 

      Von Soest, Tilmann; Pedersen, Willy; Bakken, Anders; Sletten, Mira Aaboen (Tidsskrift for Den norske legeforening;Utgave 10, Journal article; Peer reviewed, 2020-06-16)
      Bakgrunn: Effektivt smittevern er avgjørende for å bekjempe covid-19-pandemien. Vi undersøkte om Oslo-ungdom rapporterte å overholde smittevernreglene under pandemien og om oppslutning om reglene var relatert til ...
    • Tobacco use among Norwegian adolescents: from cigarettes to snus 

      Pedersen, Willy; Soest, Tilmann von (Addiction;109(7), Journal article; Peer reviewed, 2014-03-16)
      Aims To: (i) investigate the development of smoking and snus use among Norwegian adolescents, and (ii) describe the users in each group. Design Two population-based surveys with identical procedures in 2002 (response ...
    • Urban landscapes of adolescent substance use 

      Pedersen, Willy; Bakken, Anders (Journal article; Peer reviewed, 2016)
      Cities are increasingly organised according to socio-spatial divisions in which groups with similar characteristics live in the same areas. This social polarisation is associated with differences in living conditions, ...