(2001). Between harm and dangers. Oral snuff use, cigarette smoking and problem behaviours in a survey of Swedish male adolescents.
(2003). Bye EK: Use of intoxicants among Norwegian 15– 16 years-old. [In Norwegian: Bruk av rusmidler blant norske 15–16-åringer]
(2004). Changing social gradients in cigarette smoking and cessation over two decades of adult follow-up in a British birth cohort. J Public Health (Oxf)
(1994). Collishaw NE, Piha T: A descriptive model of the cigarette epidemic in developed countries. Tob Control
(2005). Cummings KM: Characteristics of low-level smokers. Nicotine Tob Res
(2006). de Vries H: Progression of oral snuff use among Finnish 13–16-year-old students and its relation to smoking behaviour. Addiction
(2006). Doring A: Urban-rural disparities in smoking behaviour in Germany. BMC Public Health
Effects from use of snuff [In Norwegian:Virkninger av snusbruk] 2005 [http://www.kunnskapssenteret.no/Publikasjoner/1231.cms]. Norwegian Knowledge Centre for the Health Services
(2007). Epidemiologic perspectives on smokeless tobacco marketing and population harm.
Fewer children live with married parents [In Norwegian: Færre barn bor med gifte foreldre]. Statistics Norway [http://www.ssb.no/eng lish/subjects/02/01/20/barn_en/].
(2007). Fitzpatrick KM: Socioeconomic status, psychosocial health and health behaviours among Hungarian adolescents.
(2004). for Research on Cancer: Betel-quid and areca-nut chewing and some areca-nut-derived nitrosamines. Volume 85. IARC Monographs on the Evaluation of the Carcinogenic Risks to Humans;
(2007). for Research on Cancer: Smokeless Tobacco and Some Related Nitrosamines. IARC Monogr Eval Carcinog Risks Hum
(2007). Health inequalities among adolescents: the impact of academic orientation and parents' education.
(1998). Health related lifestyle in adolescence predicts adult educational level: a longitudinal study from Finland.
(2005). Health risks from Swedish snuff [In Swedish: Hälsorisker med svenskt snus]
(2005). Health risks of smoking compared to Swedish snus. Inhal Toxicol
(2006). IM: Determinants of daily smoking in Turkish young adults in the Netherlands. BMC Public Health
(1997). Indicators of socioeconomic status for adolescents: the WHO Health Behaviour in School-aged Children Survey. Health Educ Res
(2005). Information bias from dependent measurement error in observational studies. Tidsskr Nor Laegeforen
(2001). Intermittent and daily smokers: two different socioeconomic patterns, and diverging influence of social participation. Tob Control
(1998). Intermittent smokers: a descriptive analysis of persons who have never smoked daily.
Is moist snuff use associated with excess risk of IHD or stroke? A longitudinal follow-up of snuff users in Sweden.
(1996). LJ: The effect of socioeconomic status on chronic disease risk behaviors among US adolescents. JAMA
(2003). LL: Nondaily smokers: a descriptive analysis. Nicotine Tob Res
(2000). Mackenbach JP: Educational differences in smoking: international comparison. BMJ
(2005). Mackenbach JP: Educational inequalities in smoking among men and women aged 16 years and older in 11 European countries. Tob Control
(2003). Minority Language School Pupils. Reproduction of inequality or social mobility? [In Norwegian:Minoritetsspråklig ungdom i skolen. Reproduksjon av ulikhet eller sosial mobilitet?]. 15/2003 Oslo: Norwegian Social Research;
(2005). MR: Validity of self reports in a cohort of Swedish adolescent smokers and smokeless tobacco (snus) users. Tob Control
(1989). Nelder JA: Generalized Linear Models 2nd edition. London: Chapman and Hall;
(2006). Normative processes and adolescents' smoking behaviour in Norway: a multilevel analysis. Soc Sci Med
(2007). Parental smoking and adolescent smoking stages: the role of parents' current and former smoking, and family structure.
(1998). Patterns of smoking in Bulgaria. Tob Control
(1998). Patterns of smoking in Russia. Tob Control
(1996). Prevalence, reliability and bias of adolescents' reports of smoking and quitting. Addiction
(2005). Rodu B: The decline of smoking in northern Sweden.
(2006). Role of snus in initiation and cessation of tobacco smoking in Sweden. Tob Control
(2007). Sales of tobacco [In Norwegian: Salg av tobakk]
(2003). Should the European Union lift the ban on snus? Evidence from the Swedish experience. Addiction
(2005). Skurtveit S: Drinking pattern among adolescents with immigrant and Norwegian backgrounds: a two-way influence? Addiction
(2006). SM: Health inequality in adolescence. Does stratification occur by familial social background, family affluence, or personal social position? BMC Public Health
(2006). Socioeconomic determinants of health related quality of life in childhood and adolescence: results from a European study.
(2007). Socioeconomic status and health behaviors in adolescence: a review of the literature.
(2006). Socioeconomic status and health behaviour patterns through adolescence: Results from a prospective cohort study in Norway.
(2004). The burden of mortality from smoking: comparing Sweden with other countries in the European Union.
(2007). The number of smokers in junior high school halved [In Norwegian: Antall røykere i ungdomsskolen halvert]
(1993). The relation between teenage smoking and drinking, with special reference to non-standard family background.
(2006). The relationship between smoker and nonsmoker prototypes and smoking status among 14-year-old Norwegians. Addict Behav
(2005). The use of alcohol and tobacco among adolescents: The impact of immigrant background. [In Norwegian: Alkohol- og tobakksbruk blant ungdom: Hva betyr innvandrerbakgrunn?].
tobacco 1973–2003 [In Norwegian: Tall om tobakk].
(2003). Unal B: Health effects associated with smokeless tobacco: a systematic review. Thorax
(2002). Validation of self reported smoking.
(2006). Weinehall L: Contribution of Swedish moist snuff to the metabolic syndrome: a wolf in sheep's clothing?