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List of works by Jorma Tynjälä

Attempts to lose weight among overweight and non-overweight adolescents: a cross-national survey

scientific article

Clustering of energy balance-related behaviours, sleep, and overweight among Finnish adolescents.

scientific article published on 07 June 2017

Computer use, sleep duration and health symptoms: a cross-sectional study of 15-year olds in three countries.

scientific article published on 22 May 2014

Different drinking motives, different adverse consequences? Evidence among adolescents from 10 European countries

scientific article

Do adolescents with long-term illnesses and disabilities have increased risks of sports related injuries?

scientific article

Does Sleep Mediate the Association between School Pressure, Physical Activity, Screen Time, and Psychological Symptoms in Early Adolescents? A 12-Country Study

Does health literacy explain regional health disparities among adolescents in Finland?

scientific article

Drinking motives and links to alcohol use in 13 European countries

scientific article published in May 2014

Drinking motives mediate cultural differences but not gender differences in adolescent alcohol use.

scientific article published on 10 January 2015

Emotional health of Canadian and Finnish students with disabilities or chronic conditions

scientific article

Empowerment-enabling home and school environments and self-rated health among Finnish adolescents

scientific article published on 01 February 2020

Energy Drink Consumption Among Finnish Adolescents: Prevalence, Associated Background Factors, Individual Resources, and Family Factors

Health asset profiles and health indicators among 13- and 15-year-old adolescents

scientific article published on 12 July 2019

Health literacy and participation in sports club activities among adolescents

scientific article

How Are Adolescents Sleeping? Adolescent Sleep Patterns and Sociodemographic Differences in 24 European and North American Countries

scientific article published on 01 June 2020

International Trends in Adolescent Screen-Time Behaviors From 2002 to 2010.

scientific article published on 27 January 2016

Leisure-time physical activity and participation in organized sports: Changes from 1985 to 2014 in Finland and Norway

scientific article published on 29 April 2019

Loneliness and subjective health complaints among school-aged children

scientific article published in February 2018

Lukiolaisten masentuneisuus ja vanhempien työllisyystilanne –Uudenmaan ja Pohjanmaan maakuntien suomen- ja ruotsinkielisten lukioiden opiskelijoiden vertailua

scientific article

Organized Sport Participation and Physical Activity Levels among Adolescents with Functional Limitations.

scientific article

Overweight Adolescents' Self-Perceived Weight and Weight Control Behaviour: HBSC Study in Finland 1994-2010.

scientific article

Ownership and Use of Commercial Physical Activity Trackers Among Finnish Adolescents: Cross-Sectional Study

scientific article

Physical Activity Among Adolescents With Long-Term Illnesses or Disabilities in 15 European Countries.

scientific article

Physical Activity Trends of Finnish Adolescents With Long-Term Illnesses or Disabilities From 2002-2014.

scientific article

Physical activity of children with and without long-term illness or disability.

scientific article published in November 2011

Prevalence of self-reported chronic pain among adolescents: Evidence from 42 countries and regions

scientific article published on 03 September 2018

Problematic Social Media Use and Health among Adolescents

scientific article

Reliability and Validity of Family Affluence Scale (FAS II) among Adolescents in Beijing, China

article

Results From Finland's 2016 Report Card on Physical Activity for Children and Youth.

scientific article

Results from Finland's 2014 Report Card on Physical Activity for Children and Youth

scientific article published in May 2014

Results from Finland’s 2014 Report Card on Physical Activity for Children and Youth

scientific article

Self-esteem and intentions mediates perceived fitness with physical activity in Finnish adolescents with long-term illness or disabilities

scientific article

Socioeconomic differences in adolescents' smoking: a comparison between Finland and Beijing, China.

scientific article

Socioeconomic differences in the use of alcohol and drunkenness in adolescents: Trends in the Health Behaviour in School-aged Children study in Finland 1990-2014.

scientific article published on 22 December 2016

Socioeconomic inequalities in alcohol use of adolescents: the differences between China and Finland ⬇️

scientific article published on November 28, 2012

Test-retest reliability of adolescents' self-reported physical activity item in two consecutive surveys

scientific article published on 25 February 2019

Test-retest reliability of selected items of Health Behaviour in School-aged Children (HBSC) survey questionnaire in Beijing, China

scientific article

The Associations between Physical Activity and Body-Esteem in 15-Year-Old Adolescents: A Cross-Sectional Study from Finland

scientific article

The medicine use and corresponding subjective health complaints among adolescents, a cross-national survey.

scientific article published on 18 January 2011

Trends in self-reported sleep problems, tiredness and related school performance among Finnish adolescents from 1984 to 2011.

scientific article published on 4 November 2014

Trends in sleeping difficulties among European adolescents: Are these associated with physical inactivity and excessive screen time?

scientific article published on 10 December 2018

Trends in sleeping difficulty among adolescents in five Nordic countries 2002–2014

scientific article

Trends in vigorous physical activity and TV watching of adolescents from 1986 to 2002 in seven European Countries

scientific article published on 28 October 2006

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