K. Klepp

K. Klepp, N. Sam, A. Hussain, 2008, International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases.

Does tracking of dietary behaviours differ by parental education in children during the transition into adolescence?

L. Andersen, N. Lien, K. Klepp, 2012, Public Health Nutrition.

Predictors and tracking of body mass index from adolescence into adulthood: follow-up of 18 to 20 years in the Oslo Youth Study.

G. Tell, K. Klepp, E. Kvaavik, 2003, Archives of pediatrics & adolescent medicine.

Differences in prevalence of overweight and stunting in 11-year olds across Europe: The Pro Children Study.

Ilse de Bourdeaudhuij, J. Brug, A. Yngve, 2007, European journal of public health.

[Stability of body mass index from adolescence to adulthood].

K. Klepp, E. Kvaavik, G. Seppola Tell, 2002, Tidsskrift for den Norske laegeforening : tidsskrift for praktisk medicin, ny raekke.

Association between parenting styles and own fruit and vegetable consumption among Portuguese mothers of school children.

K. Klepp, B. Franchini, R. Poínhos, 2011, The British journal of nutrition.

Evaluation of two student and teacher involved alcohol prevention programmes.

J. Laberg, K. Klepp, B. U. Wilhelmsen, 1994, Addiction.

The Norwegian School Fruit Programme: evaluating paid vs. no-cost subscriptions.

E. Bere, M. Veierød, K. Klepp, 2005, Preventive medicine.

Process evaluation of a school-based HIV/AIDS intervention in South Africa

N. Ahmed, H. Schaalma, K. Klepp, 2009, Scandinavian journal of public health.

Use of health services and reported satisfaction among primary school adolescents in Arusha, Tanzania.

G. Kvåle, K. Klepp, M. Masatu, 2001, The Journal of adolescent health : official publication of the Society for Adolescent Medicine.

Childhood overweight and obesity in Europe: Changes from 2007 to 2017

J. Breda, G. Starc, I. Rakovac, 2021, Obesity reviews : an official journal of the International Association for the Study of Obesity.

Ten-year follow-up of the Oslo Youth Study Smoking Prevention Program.

G. Tell, O. Vellar, K. Klepp, 1993, Preventive medicine.

The Norwegian Nutrition and Food Policy: An Integrated Policy Approach to a Public Health Problem

K. Klepp, J. Forster, 1985, Journal of public health policy.

European nutrition and health report 2004.

E. Trolle, M. Sjöström, F. Branca, 2005, Forum of nutrition.

Food insecurity is associated with food consumption patterns and anthropometric measures but not serum micronutrient levels in adults in rural Tanzania

K. Klepp, A. Hussain, E. Mmbaga, 2010, Public Health Nutrition.

Primary prevention of cardiovascular disease: communitywide strategies for youth.

C. Perry, J. Shultz, K. Klepp, 1988, Journal of consulting and clinical psychology.

Onset, development, and prevention of drinking and driving among adolescents

C. Perry, D. Jacobs, K. Klepp, 1987 .

Sexual debut and predictors of condom use among secondary school students in Arusha, Tanzania.

K. Klepp, A. Skutle, W. Lugoe, 1996, AIDS care.

Condom awareness and use in the Arusha and Kilimanjaro regions, Tanzania: a population-based study.

G. Kvåle, K. Klepp, K. S. Mnyika, 1995, AIDS education and prevention : official publication of the International Society for AIDS Education.

Validity of non‐invasive assessment of anaemia in pregnancy

K. Klepp, P. Bergsjø, S. Hinderaker, 2008, Tropical medicine & international health : TM & IH.

Tracking of fruit, vegetables and unhealthy snacks consumption from childhood to adulthood (15 year period): does exposure to a free school fruit programme modify the observed tracking?

J. Twisk, E. Bere, S. T. te Velde, 2019, International Journal of Behavioral Nutrition and Physical Activity.

Effects of 1 y of free school fruit on intake of fruits, vegetables, and unhealthy snacks: 14 y later.

E. Bere, K. Klepp, T. Stea, 2018, The American journal of clinical nutrition.

Correlates of intention to use condoms among Sub-Saharan African youth: The applicability of the theory of planned behaviour

S. Kaaya, L. Aarø, H. Schaalma, 2009, Scandinavian journal of public health.

Social class, gender and psychosocial predictors for early sexual debut among 16 year olds in Oslo.

E. Røysamb, D. Thelle, K. Klepp, 2005, European journal of public health.

South African teachers' reflections on the impact of culture on their teaching of sexuality and HIV/AIDS

K. Klepp, A. Flisher, H. Onya, 2009, Culture, health & sexuality.

Validation of the Radimer/Cornell food insecurity measure in rural Kilimanjaro, Tanzania

K. Klepp, E. Mmbaga, G. Leyna, 2008, Public Health Nutrition.

INCIDENCE OF HIV-1 INFECTIONS AND CHANGE IN STI’s AND RISK SEXAUL BEHAVIOURS IN NORTHERN TANZANIA: A LONGITUDINAL STUDY

K. Klepp, A. Hussain, 2005 .

Does the school food environment influence the dietary behaviours of Norwegian 11-year-olds? The HEIA study

L. Andersen, N. Lien, K. Klepp, 2012, Scandinavian journal of public health.

Intakes and perceived home availability of sugar-sweetened beverages, fruit and vegetables as reported by mothers, fathers and adolescents in the HEIA (HEalth In Adolescents) study

L. Andersen, N. Lien, S. Anderssen, 2011, Public Health Nutrition.

Education Attainment and the Risk of HIV-1 Infections in Rural Kilimanjaro Region of Tanzania, 1991–2005: A Reversed Association

K. Klepp, E. Mmbaga, K. S. Mnyika, 2007, Sexually transmitted diseases.

Appreciation and implementation of a school-based intervention are associated with changes in fruit and vegetable intake in 10- to 13-year old schoolchildren--the Pro Children study.

J. Brug, E. Bere, S. T. te Velde, 2007, Health education research.

Mothers' involvement in a school-based fruit and vegetable promotion intervention is associated with increased fruit and vegetable intakes – The Pro Children study

J. Brug, S. T. te Velde, K. Klepp, 2008, The international journal of behavioral nutrition and physical activity.

Effects of a saliva pipeline procedure on adolescent self-reported smoking behavior and youth smoking prevention outcomes.

S. Kelder, C. Perry, K. Komro, 1993, Preventive medicine.

Free school fruit: can an extra piece of fruit every school day contribute to the prevention of future weight gain? A cluster randomized trial

N. Øverby, E. Bere, K. Klepp, 2014, Food & nutrition research.

The school setting: an opportunity for the implementation of dietary guidelines

A. Yngve, M. Sjöström, K. Klepp, 2001, Public Health Nutrition.

Determinants of high-risk sexual behaviour and condom use among adults in the Arusha region, Tanzania

G. Kvåle, K. Klepp, K. S. Mnyika, 1997, International journal of STD & AIDS.

Risk factors for HIV-1 infection among women in the Arusha region of Tanzania.

G. Kvåle, K. Klepp, K. S. Mnyika, 1996, Journal of acquired immune deficiency syndromes and human retrovirology : official publication of the International Retrovirology Association.

Effects of a School-Based Intervention on Frequency and Quality of Adolescent-Parent/Caregiver Sexuality Communication: Results from a Randomized-Controlled Trial in Uganda

L. Aarø, K. Klepp, A. Wubs, 2018, AIDS and Behavior.

Effects of the SATZ teacher-led school HIV prevention programmes on adolescent sexual behaviour: cluster randomised controlled trials in three sub-Saharan African sites.

S. Kaaya, H. Schaalma, K. Klepp, 2012, International health.

Promoting and sustaining health through increased vegetable and fruit consumption among European schoolchildren: The Pro Children Project

Ilse de Bourdeaudhuij, J. Brug, M. Sjöström, 2005, Journal of Public Health.

Personal, Social and Environmental Factors regarding Fruit and Vegetable Intake among Schoolchildren in Nine European Countries

Ilse de Bourdeaudhuij, J. Brug, M. D. Vaz de Almeida, 2005, Annals of Nutrition and Metabolism.

The association between students' perceptions of a caring teacher and sexual initiation. A study among South African high school students.

L. Aarø, K. Klepp, C. Mathews, 2011, Health education research.

Patterns in sedentary and physical exercise behaviors and overweight in boys and girls

J. Brug, M. Hagströmer, I. Thorsdottir, 2006 .

Public support for policy initiatives regulating alcohol use in Minnesota: a multi-community survey.

R. Jeffery, T. Schmid, K. Klepp, 1990, Journal of studies on alcohol.

Consumption of sugar-sweetened beverages and artificially sweetened beverages from childhood to adulthood in relation to socioeconomic status – 15 years follow-up in Norway

E. Bere, K. Klepp, T. Stea, 2018, International Journal of Behavioral Nutrition and Physical Activity.

Incidence of HIV-1 infection and changes in prevalence of reproductive tract infections and sexual risk behaviours: a population-based longitudinal study in rural Tanzania

K. Klepp, N. Sam, A. Hussain, 2006, African journal of AIDS research : AJAR.

Clinicians' perspective of a training programme in syndromic management of sexually transmitted infections in Northern Tanzania.

K. Klepp, David Martin, M. Masatu, 2005, International journal of STD & AIDS.

HIV and reproductive tract infections in a total village population in rural Kilimanjaro, Tanzania: women at increased risk.

K. Klepp, N. Sam, W. Nkya, 1997, Journal of acquired immune deficiency syndromes and human retrovirology : official publication of the International Retrovirology Association.

[Perceived access to alcohol among lower secondary school students. A longitudinal study].

K. Klepp, H. Aas, R. Waahlberg, 1996, Tidsskrift for den Norske laegeforening : tidsskrift for praktisk medicin, ny raekke.

Stability in physical activity levels in young adolescents

N. Anderssen, K. Klepp, R. Jakobsen, 1994 .

22nd European Congress on Obesity (ECO2015), Prague, Czech Republic, May 6-9, 2015: Abstracts

J. N. Fidalgo, Jimmy D Bell, L. S. Silveira, 2015, Obesity Facts.

Adolescents’ Perspectives on the Drivers of Obesity Using a Group Model Building Approach: A South African Perspective

C. Knai, H. Rutter, K. Klepp, 2022, International journal of environmental research and public health.

Fruit and Vegetable Intake of Mothers of 11-Year-Old Children in Nine European Countries: The Pro Children Cross-Sectional Survey

J. Brug, M. D. Vaz de Almeida, A. Yngve, 2005, Annals of Nutrition and Metabolism.

[When figures are not enough--use of qualitative methods in medical research].

K. Klepp, 1997, Tidsskrift for den Norske laegeforening : tidsskrift for praktisk medicin, ny raekke.

The Norwegian cholesterol campaign: a one year follow-up evaluation of a local action.

L. Aarø, S. Matthiesen, R. Ulvik, 1991, Homeostasis in health and disease : international journal devoted to integrative brain functions and homeostatic systems.

Exploring overweight, obesity and their behavioural correlates among children and adolescents: results from the Health-promotion through Obesity Prevention across Europe project

N. Lien, J. Brug, F. V. van Lenthe, 2010, Public Health Nutrition.

Promoting sexual and reproductive health among adolescents in southern and eastern Africa (PREPARE): project design and conceptual framework

C. Abraham, H. de Vries, S. Kaaya, 2014, BMC Public Health.

Review Article: A review of studies of sexual behaviour of school students in sub-Saharan Africa

S. Kaaya, L. Aarø, H. Schaalma, 2002 .

Promoting adolescent sexual and reproductive health in East and Southern Africa

S. Kaaya, K. Klepp, A. Flisher, 2008 .

Herpes simplex virus type-2 and human immunodeficiency virus infections in a rural population in Kilimanjaro Tanzania.

B. Stray-Pedersen, K. Klepp, E. Mmbaga, 2011, East African journal of public health.

Chlamydial infection in males and conseqences for their female sexual partners, an example from rural Kilimanjaro, Tanzania

K. Klepp, N. Sam, E. Klouman, 2002, International journal of STD & AIDS.

Parental social position, body image, and other psychosocial determinants and first sexual intercourse among 15- and 16-year olds.

E. Røysamb, K. Klepp, J. Sundby, 2009, Adolescence.

Primary prevention of overweight and obesity in adolescents: An overview of systematic reviews

T. Lobstein, H. Rutter, G. Flodgren, 2020, Obesity reviews : an official journal of the International Association for the Study of Obesity.

Psychosocial determinants of sexual activity and condom use intention among youth in Addis Ababa, Ethiopia

K. Klepp, J. Sundby, G. Bjune, 2002, International journal of STD & AIDS.

Sexually transmitted infections knowledge and its impact in the practice of risky sexual behaviours and HIV serostatus: results from rural Kilimanjaro, Tanzania

K. Klepp, G. Leyna, K. S. Mnyika, 2008, Sexually Transmitted Infections.

AIDS education in Tanzania: focus on school children.

K. Klepp, W. Lugoe, 1999, The AIDS reader.

Asymptomatic gonorrhoea and chlamydial infection in a population-based and work-site based sample of men in Kilimanjaro, Tanzania

K. Klepp, N. Sam, E. Klouman, 2000, International journal of STD & AIDS.

Research in the behavioural and social sciences to improve cancer control and care: a strategy for development. A report of an expert group.

K. Straif, J. Brug, A. Bottomley, 2004, European journal of cancer.

Prevalence and risk factors for HIV-1 infection in rural Kilimanjaro region of Tanzania: Implications for prevention and treatment

K. Klepp, N. Sam, A. Hussain, 2007, BMC public health.

Self‐reported and observed female genital cutting in rural Tanzania: associated demographic factors, HIV and sexually transmitted infections

K. Klepp, R. Manongi, E. Klouman, 2005, Tropical medicine & international health : TM & IH.

Comparison of HIV-1 prevalence and risk factors between pregnant, non-pregnant, all women and the general population in Tanzania: implications for second-generation surveillance

K. Klepp, E. Mmbaga, G. Leyna, 2009, International journal of STD & AIDS.

Perceptions and experiences of adolescents, parents and school administrators regarding adolescent-parent communication on sexual and reproductive health issues in urban and rural Uganda

K. Klepp, Anne Ruhweza Katahoire, S. Bastien, 2015, Reproductive Health.

Exposure to information and communication about HIV/AIDS and perceived credibility of information sources among young people in northern Tanzania

K. Klepp, S. Bastien, M. T. Leshabari, 2009, African journal of AIDS research : AJAR.

Promoting sexual and reproductive health in early adolescence in South Africa and Tanzania: Development of a theory- and evidence-based intervention programme

S. Kaaya, L. Aarø, H. Schaalma, 2006, Scandinavian journal of public health.

Exclusive Breastfeeding in the Era of AIDS

K. Klepp, E. Helsing, R. Manongi, 2001, Journal of human lactation : official journal of International Lactation Consultant Association.

Counsellors’ Perspectives on Antenatal HIV Testing and Infant Feeding Dilemmas Facing Women with HIV in Northern Tanzania

K. Klepp, R. Manongi, Marina Manuela de Paoli, 2002, Reproductive health matters.

Are infant feeding options that are recommended for mothers with HIV acceptable, feasible, affordable, sustainable and safe? Pregnant women's perspectives

K. Klepp, R. Manongi, Marina Manuela de Paoli, 2004, Public Health Nutrition.

Factors influencing acceptability of voluntary counselling and HIV-testing among pregnant women in Northern Tanzania

K. Klepp, R. Manongi, M. D. de Paoli, 2004, AIDS care.

Fruit and Vegetable Intake in a Sample of 11-Year-Old Children in 9 European Countries: The Pro Children Cross-Sectional Survey

J. Brug, M. Sjöström, A. Yngve, 2005, Annals of Nutrition and Metabolism.

Handheld computers for survey and trial data collection in resource-poor settings: Development and evaluation of PDACT, a PalmTM Pilot interviewing system

Christopher J. Seebregts, Merrick Zwarenstein, Catherine Mathews, 2009, Int. J. Medical Informatics.

Physical Fitness and Physical Activity at Age 13 Years as Predictors of Cardiovascular Disease Risk Factors at Ages 15, 25, 33, and 40 Years: Extended Follow-up of the Oslo Youth Study

G. Batty, G. Tell, K. Klepp, 2009, Pediatrics.

Determinants of fruit and vegetable consumption among children and adolescents: a review of the literature. Part II: qualitative studies

J. Brug, M. Rasmussen, K. Klepp, 2011, The international journal of behavioral nutrition and physical activity.

Direct and indirect association between environmental factors and fruit intake, mediation by psychosocial factors: the Pro Children study

J. Brug, S. T. te Velde, K. Klepp, 2010, Public Health Nutrition.

Preventing socioeconomic inequalities in health behaviour in adolescents in Europe: Background, design and methods of project TEENAGE

N. Lien, Ilse de Bourdeaudhuij, J. Mackenbach, 2009, BMC public health.

An HIV/AIDS knowledge scale for adolescents: item response theory analyses based on data from a study in South Africa and Tanzania.

S. Kaaya, L. Aarø, K. Klepp, 2011, Health education research.

Attitudes and perceived impact of antiretroviral therapy on sexual risk behaviour among young people in Kahe, Moshi Rural District, Tanzania.

K. Klepp, M. Ezekiel, K. S. Mnyika, 2009, Tanzania journal of health research.

Socioeconomic status and health behaviour patterns through adolescence: results from a prospective cohort study in Norway.

K. Klepp, C. Friestad, 2006, European journal of public health.

Adolescents' proxy reports of parents' socioeconomic status: How valid are they?

N. Lien, K. Klepp, N Lien, 2001, Journal of epidemiology and community health.

Effect of free vitamin D2 drops on serum 25-hydroxyvitamin D in infants with immigrant origin: a cluster randomized controlled trial

K. Klepp, H. Meyer, A. Madar, 2009, European Journal of Clinical Nutrition.

Determinants of fruit and vegetable consumption among children and adolescents: a review of the literature. Part I: quantitative studies

J. Brug, L. Lytle, E. Bere, 2006, The international journal of behavioral nutrition and physical activity.

Changes in accessibility and preferences predict children's future fruit and vegetable intake

Knut-Inge Klepp, Elling Bere, E. Bere, 2005, The international journal of behavioral nutrition and physical activity.

"When in the body, it makes you look fat and HIV negative": the constitution of antiretroviral therapy in local discourse among youth in Kahe, Tanzania.

K. Klepp, M. Ezekiel, J. Juma, 2009, Social science & medicine.

Exposure to HIV/AIDS information, AIDS knowledge, perceived risk and attitudes toward people with AIDS among primary school-children in northern Tanzania.

K. Klepp, S. Ndeki, M. Leshabari, 1994, AIDS care.

AIDS knowledge and risk perception in urban and rural communities in Arusha region, Tanzania

K. Klepp, M. Leshabari, K. S. Mnyika, 2004 .

Scale reliability and construct validity: a pilot study among primary school children in Northern Tanzania.

K. Klepp, S. Ndeki, A. M. Seha, 1994, AIDS Education and Prevention.

Can any teacher teach sexuality and HIV/AIDS? Perspectives of South African Life Orientation teachers

K. Klepp, A. Flisher, H. Onya, 2011 .

Utilization of health care services for STD treatment in Kahe community of Kilimanjaro Region in Tanzania.

G. Kvåle, K. Klepp, C. Moshiro, 2004 .

Changes in exposure to information, communication and knowledge about AIDS among school children in Northern Tanzania, 1992–2005

K. Klepp, S. Bastien, M. Masatu, 2008, AIDS care.

The reliability and validity of self-report measures used to evaluate adolescent HIV/AIDS prevention programs in sub-Saharan Africa.

K. Kugler, K. Komro, K. Klepp, 2007, AIDS education and prevention : official publication of the International Society for AIDS Education.

AIDS education for Tanzanian youth: a mediation analysis.

K. Kugler, K. Komro, K. Klepp, 2005, Health education research.

Recruiting and engaging adolescents in creating overweight and obesity prevention policies: The CO‐CREATE project

N. Lien, A. Luszczynska, I. Budin-Ljøsne, 2023, Obesity reviews : an official journal of the International Association for the Study of Obesity.

A systematic review of the evidence regarding efficacy of obesity prevention interventions among adults

J. Brug, V. Lemmens, A. Oenema, 2008, Obesity reviews : an official journal of the International Association for the Study of Obesity.

The impact of hypothetical interventions on adiposity in adolescence

N. Lien, O. Arah, K. Klepp, 2021, Scientific Reports.

The stability of soft drinks intake from adolescence to adult age and the association between long-term consumption of soft drinks and lifestyle factors and body weight

L. Andersen, K. Klepp, E. Kvaavik, 2005, Public Health Nutrition.

The relationship between parental education and adolescents' soft drink intake from the age of 11-13 years, and possible mediating effects of availability and accessibility.

L. Andersen, N. Lien, K. Klepp, 2013, The British journal of nutrition.

Free Fruit for School Children to Improve Food Quality

E. Bere, K. Klepp, 2013 .

Introduction of a school fruit program is associated with reduced frequency of consumption of unhealthy snacks.

N. Øverby, E. Bere, K. Klepp, 2012, The American journal of clinical nutrition.

Changes in 10-12 year old's fruit and vegetable intake in Norway from 2001 to 2008 in relation to gender and socioeconomic status - a comparison of two cross-sectional groups

Knut-Inge Klepp, Elling Bere, E. Bere, 2011, The international journal of behavioral nutrition and physical activity.

Design of a 20-month comprehensive, multicomponent school-based randomised trial to promote healthy weight development among 11-13 year olds: The HEalth In Adolescents study

N. Lien, S. Anderssen, K. Klepp, 2010, Scandinavian journal of public health.

Why do parents' education level and income affect the amount of fruits and vegetables adolescents eat?

J. Brug, F. V. van Lenthe, E. Bere, 2008, European journal of public health.

Consumption of vegetables at dinner in a cohort of Norwegian adolescents

N. Lien, E. Bere, K. Klepp, 2008, Appetite.

CIGARETTE SMOKING AND USE OF SMOKELESS TOBACCO IN MOSHI RURAL DISTRICT IN NORTHERN TANZANIA

K. Klepp, E. Klouman, K. S. Mnyika, 2007 .

A Qualitative Exploration of Determinants of Fruit and Vegetable Intake among 10- and 11-Year-Old Schoolchildren in the Low Countries

Ilse de Bourdeaudhuij, J. Brug, K. Klepp, 2005, Annals of Nutrition and Metabolism.

One year of free school fruit in Norway – 7 years of follow-up

J. Twisk, E. Bere, S. T. te Velde, 2015, International Journal of Behavioral Nutrition and Physical Activity.

Reliability and validity of a questionnaire to measure personal, social and environmental correlates of fruit and vegetable intake in 10–11-year-old children in five European countries

Ilse de Bourdeaudhuij, J. Brug, K. Klepp, 2005, Public Health Nutrition.

Changes in adolescents' intake of sugar-sweetened beverages and sedentary behaviour: Results at 8 month mid-way assessment of the HEIA study - a comprehensive, multi-component school-based randomized trial

L. Andersen, N. Lien, S. Anderssen, 2011, The international journal of behavioral nutrition and physical activity.

Patterns in sedentary and exercise behaviors and associations with overweight in 9–14-year-old boys and girls - a cross-sectional study.

Ilse de Bourdeaudhuij, J. Brug, M. Hagströmer, 2007, BMC public health.

Contribution of vegetable soup to total vegetables intake and its determinants among mothers in Portugal

K. Klepp, M. D. Almeida, B. Franchini, 2012 .

Longitudinal associations of energy balance-related behaviours and cross-sectional associations of clusters and body mass index in Norwegian adolescents

N. Lien, J. Twisk, E. Bere, 2010, Public Health Nutrition.

Correlates of irregular family meal patterns among 11-year-old children from the Pro Children study

L. Andersen, P. van’t Veer, J. Brug, 2017, Food & nutrition research.

Modeling the long term health outcomes and cost-effectiveness of two interventions promoting fruit and vegetable intake among schoolchildren.

N. I. Tak, J. Brug, J. Bosmans, 2011, Economics and human biology.

Determinants of adolescents’ soft drink consumption

E. Bere, S. T. te Velde, K. Klepp, 2008, Public Health Nutrition.

Effect of Ending the Nationwide Free School Fruit Scheme on the Intake of Fruits, Vegetables, and Unhealthy Snacks in Norwegian School Children Aged 10–12 Years

E. Bere, K. Klepp, D. Engeset, 2023, International journal of environmental research and public health.

Effects of a comprehensive fruit- and vegetable-promoting school-based intervention in three European countries: the Pro Children Study

J. Brug, S. T. te Velde, K. Klepp, 2007, British Journal of Nutrition.

Teachers' confidence in teaching HIV/AIDS and sexuality in South African and Tanzanian schools

S. Kaaya, K. Klepp, A. Flisher, 2009, Scandinavian journal of public health.

HIV Education for Young People: Intervention Effectiveness, Programme Development, and Future Research

C. Abraham, G. Kok, G. Parcel, 2002 .

Sources of cigarettes for tenth graders in two Minnesota cities

R. Jeffery, K. Klepp, J. Forster, 1989 .

Measurement of alcohol and tobacco availability to underage students.

D. Murray, A. Wagenaar, K. Klepp, 1996, Addictive behaviors.

When the researchers have gone home to write their articles. Diffusion and implementation of school-based HIV-prevention programs in Tanzania.

S. Kaaya, H. Schaalma, K. Klepp, 2004 .

Parental and peer influences on smoking among young adults: ten-year follow-up of the Oslo youth study participants.

G. Tell, O. Vellar, K. Klepp, 1995, Addiction.

Personal, social and environmental correlates of vegetable intake in normal weight and overweight 9 to 13-year old boys

Ilse de Bourdeaudhuij, J. Brug, A. Yngve, 2006, The international journal of behavioral nutrition and physical activity.

Differences in fruit and vegetable intake and determinants of intakes between children of Dutch origin and non-Western ethnic minority children in the Netherlands – a cross sectional study

J. Brug, F. V. van Lenthe, S. T. te Velde, 2006, The international journal of behavioral nutrition and physical activity.

Evidence-based development of school-based and family-involved prevention of overweight across Europe: The ENERGY-project's design and conceptual framework

N. Lien, Ilse de Bourdeaudhuij, J. Brug, 2010, BMC public health.

Correlates of fruit and vegetable intake among Norwegian schoolchildren: parental and self-reports

E. Bere, K. Klepp, 2004, Public Health Nutrition.

Predictors of adolescent smoking and implications for prevention.

C. Perry, D. Murray, K. Klepp, 1987, MMWR supplements.

Preventing the onset of cigarette smoking in Norwegian adolescents: the Oslo youth study.

A. Mcalister, G. Tell, O. Vellar, 1984, Preventive medicine.

The impact of maternal negative affectivity and general self-efficacy on breastfeeding: the Norwegian Mother and Child Cohort Study.

K. Klepp, M. Vollrath, E. Ystrom, 2008, The Journal of pediatrics.

The effect of an extra piece of fruit or vegetables at school on weight status in two generations - 14 years follow-up of the Fruit and Vegetables Makes the Marks study

E. Bere, S. T. te Velde, K. Klepp, 2018, PloS one.

Assessing adolescents' readiness for action and attitudes toward obesity prevention: Instrument development and psychometric properties

N. Lien, A. Luszczynska, H. Rutter, 2022, Obesity reviews : an official journal of the International Association for the Study of Obesity.

Ethical considerations in engaging young people in European obesity prevention research: The CO‐CREATE experience

N. Lien, O. Samdal, A. Luszczynska, 2022, Obesity reviews : an official journal of the International Association for the Study of Obesity.

Predicting adolescents' intentions to drink alcohol: outcome expectancies and self-efficacy.

L. Aarø, J. Laberg, K. Klepp, 1995, Journal of studies on alcohol.

Does socio-economic status moderate the associations between psychosocial predictors and fruit intake in schoolchildren? The Pro Children study.

J. Brug, O. Samdal, K. Klepp, 2010, Health education research.

International Journal of Behavioral Nutrition and Physical Activity the Application of a Social Cognition Model in Explaining Fruit Intake in Austrian, Norwegian and Spanish Schoolchildren Using Structural Equation Modelling

Ilse de Bourdeaudhuij, J. Brug, O. Samdal, 2006 .

Psychosocial predictors of eating habits among adults in their mid-30s: The Oslo Youth Study follow-up 1991–1999

N. Lien, G. Tell, K. Klepp, 2005, The international journal of behavioral nutrition and physical activity.

Personal and social‐environmental correlates of objectively measured physical activity in Norwegian pre‐adolescent children

L F Andersen, N. Lien, S. Anderssen, 2011, Scandinavian journal of medicine & science in sports.

Outcome and process evaluation of a Norwegian school-randomized fruit and vegetable intervention: Fruits and Vegetables Make the Marks (FVMM).

E. Bere, M. Veierød, K. Klepp, 2005, Health education research.

The efficacy of peer leaders in drug abuse prevention.

C. Perry, K. Klepp, A. Halper, 1986, The Journal of school health.

Twelve year follow-up of a school-based health education programmeThe Oslo Youth Study

Knut-Inge Klepp, Grethe S. Tell, G. Tell, 1994 .

Changes in meal pattern among Norwegian children from 2001 to 2008

N. Øverby, E. Bere, K. Klepp, 2011, Public Health Nutrition.

System mapping with adolescents: Using group model building to map the complexity of obesity

C. Knai, S. Allender, A. Luszczynska, 2022, Obesity reviews : an official journal of the International Association for the Study of Obesity.

The Pro Children Intervention: Applying the Intervention Mapping Protocol to Develop a School-Based Fruit and Vegetable Promotion Programme

Johannes Brug, Knut-Inge Klepp, Javier Aranceta, 2005, Annals of Nutrition and Metabolism.

Surveys of Norwegian youth indicated that breast feeding reduced subsequent risk of obesity.

G. Tell, K. Klepp, E. Kvaavik, 2005, Journal of clinical epidemiology.

Intervention effects on physical activity: the HEIA study - a cluster randomized controlled trial

L. Andersen, N. Lien, S. Anderssen, 2013, International Journal of Behavioral Nutrition and Physical Activity.

Correlates of weight status among Norwegian 11-year-olds: The HEIA study

Knut-Inge Klepp, L. Andersen, N. Lien, 2012, BMC Public Health.

Parental education as a predictor of offspring behavioural and physiological cardiovascular disease risk factors.

M. Glymour, G. Batty, G. Tell, 2012, European journal of public health.

Covariance of adolescent health behaviors: the Class of 1989 study

Knut-Inge Klepp, S. Kelder, C. Perry, 1995 .

Community-wide youth exercise promotion: long-term outcomes of the Minnesota Heart Health Program and the Class of 1989 Study.

S. Kelder, C. Perry, K. Klepp, 1993, The Journal of school health.

Community-wide cardiovascular disease prevention in young people: Long-term outcomes of the Class of 1989 Study

S. Kelder, C. Perry, K. Klepp, 1994 .

Alcohol and marijuana use among adolescents: Long-term outcomes of the class of 1989 study

S. Kelder, C. Perry, K. Klepp, 1995, Annals of behavioral medicine : a publication of the Society of Behavioral Medicine.

Post-intervention effects on screen behaviours and mediating effect of parental regulation: the HEalth In Adolescents study – a multi-component school-based randomized controlled trial

N. Lien, S. Anderssen, M. V. van Stralen, 2014, BMC Public Health.

Promoting healthy eating and physical activity patterns among adolescents: a pilot study of ‘Slice of Life’

C. Perry, M. Smyth, K. Klepp, 1987 .

Exploring predictors of eating behaviour among adolescents by gender and socio-economic status

N. Lien, D. Jacobs, K. Klepp, 2002, Public Health Nutrition.

Overweight and waist circumference among Norwegian 11-year-olds and associations with reported parental overweight and waist circumference: The HEIA study

N. Lien, S. Anderssen, K. Klepp, 2010, Scandinavian journal of public health.

Availability of data assessing the prevalence and trends of overweight and obesity among European adolescents

N. Lien, K. Klepp, M. Wind, 2010, Public Health Nutrition.

Reliability of parental and self–reported determinants of fruit and vegetable intake among 6th graders

E. Bere, K. Klepp, 2004, Public Health Nutrition.

Changes in screen time activity in Norwegian children from 2001 to 2008: two cross sectional studies

Knut-Inge Klepp, Elling Bere, N. Øverby, 2013, BMC Public Health.

A process evaluation study of peer leaders in health education.

C. Perry, D. Murray, K. Klepp, 1986, The Journal of school health.

Lifestyle values of adolescents: results from Minnesota Heart Health Youth Program.

S. Kelder, C. Perry, K. Klepp, 1993, Adolescence.

Adolescents' alcohol use related to perceived norms.

K. Klepp, H. Aas, Klepp Ki, 1992, Scandinavian journal of psychology.

Risk-seeking and safety-seeking behaviours: a study of health-related behaviours among Norwegian school children

B. Wold, K. Klepp, F. Thuen, 1992 .

Validity and reproducibility of self-reported intake of fruit and vegetable among 6th graders

L. Andersen, E. Bere, K. Klepp, 2004, European Journal of Clinical Nutrition.

A review of studies of sexual behaviour of school students in sub-Saharan Africa.

S. Kaaya, L. Aarø, H. Schaalma, 2002, Scandinavian journal of public health.

Frequency and perceived credibility of reported sources of reproductive health information among primary school adolescents in Arusha, Tanzania

G. Kvåle, K. Klepp, M. Masatu, 2003, Scandinavian journal of public health.

The development of the NOURISHING and MOVING benchmarking tools to monitor and evaluate national governments' nutrition and physical activity policies to address obesity in the European region

H. Rutter, M. Kokkorou, K. Klepp, 2023, Obesity reviews : an official journal of the International Association for the Study of Obesity.

Social geography of risk: The role of time, place and antiretroviral therapy in conceptions about the sexual risk of HIV in Kahe, Kilimanjaro, Tanzania

K. Klepp, M. Ezekiel, K. S. Mnyika, 2010 .

Mid-way and post-intervention effects on potential determinants of physical activity and sedentary behavior, results of the HEIA study - a multi-component school-based randomized trial

L. Andersen, N. Lien, S. Anderssen, 2012, International Journal of Behavioral Nutrition and Physical Activity.

A comprehensive multicomponent school-based educational intervention did not affect fruit and vegetable intake at the 14-year follow-up.

E. Bere, S. T. te Velde, K. Klepp, 2019, Preventive medicine.

Improving the health of adolescents: the Nordic countries can help fill the evidence gap

H. Rutter, K. Klepp, A. Helleve, 2022, Scandinavian journal of public health.

Free school fruit – sustained effect three years later

Ø. Skare, E. Bere, M. Veierød, 2007, The international journal of behavioral nutrition and physical activity.

Negotiating policy ideas: Participatory action research projects across five European countries

A. Banik, K. Klepp, A. Rito, 2023, Ethics, Medicine and Public Health.

[Smoking and use of alcohol among Norwegian school children: trends in the 1980s].

B. Wold, L. Aarø, K. Klepp, 1991, Tidsskrift for Den Norske Laegeforening.

Prevalence of HIV‐1 infection in urban, semi‐urban and rural areas in Arusha region, Tanzania

G. Kvåle, K. Klepp, S. Nilssen, 1994, AIDS.

Weight development from age 13 to 30 years and adolescent socioeconomic status: The Norwegian Longitudinal Health Behaviour study

Ø. Skare, N. Lien, K. Klepp, 2015, International Journal of Public Health.

Scan of physical activity policy actions in Europe: Lessons learned from populating the MOVING database

H. Rutter, K. Klepp, M. Wiseman, 2022, Obesity reviews : an official journal of the International Association for the Study of Obesity.

Assessing social differences in overweight among 15- to 16-year-old ethnic Norwegians from Oslo by register data and adolescent self-reported measures of socio-economic status

N. Lien, K. Klepp, M. Wandel, 2007, International Journal of Obesity.

Prevalence of and predictors of substance use among adolescents in rural villages of Moshi district, Tanzania.

K. Klepp, M. Masatu, K. S. Mnyika, 2011, East African journal of public health.

Associations between diet and (in)activity behaviours with overweight and obesity among 10–18-year-old Czech Republic adolescents

N. Lien, K. Klepp, M. Wind, 2010, Public Health Nutrition.

Estimating the effect of regression toward the mean under stochastic censoring.

D. Jacobs, P. Hannan, P. McGovern, 1994, American journal of epidemiology.

Overweight and obesity prevention for and with adolescents: The “Confronting obesity: Co‐creating policy with youth” (CO‐CREATE) project

N. Lien, C. Knai, O. Samdal, 2023, Obesity reviews : an official journal of the International Association for the Study of Obesity.

Youth engagement in research and policy: The CO‐CREATE framework to optimize power balance and mitigate risks of conflicts of interest

A. Luszczynska, I. Budin-Ljøsne, H. Rutter, 2023, Obesity reviews : an official journal of the International Association for the Study of Obesity.

Promoting Physical Activity Policy: The Development of the MOVING Framework.

H. Rutter, K. Klepp, M. Wiseman, 2022, Journal of physical activity & health.

A systematic review of the evidence regarding efficacy of obesity prevention interventions among adults

J. Brug, V. Lemmens, A. Oenema, 2008, Obesity reviews : an official journal of the International Association for the Study of Obesity.

Educational plans- when are they establis hed? Implications for the measurement of socio- economic status in youth

N. Lien, K. Klepp, C. Friestad, 2001 .

International Journal of Behavioral Nutrition and Physical Activity Determinants of Fruit and Vegetable Consumption among Children and Adolescents: a Review of the Literature. Part I: Quantitative Studies

Edu, J. Brug, L. Lytle, 2006 .

ADOLESCENTS, DRINKING, AND DRIVING : WHO DOES IT AND WHY?

Knut-Inge Klepp, C. Perry, K. Klepp, 1990 .

Effects of a 20-month cluster randomised controlled school-based intervention trial on BMI of school-aged boys and girls: the HEIA study

L. Andersen, N. Lien, S. Anderssen, 2013, British Journal of Sports Medicine.

Exposure to information and communication about HIV/AIDS and perceived credibility of information sources among young people in northern Tanzania

K. Klepp, S. Bastien, M. T. Leshabari, 2009, African journal of AIDS research : AJAR.

International Journal of Behavioral Nutrition and Physical Activity Psychosocial Predictors of Eating Habits among Adults in Their Mid-30s: the Oslo Youth Study Follow-up 1991–1999

N. Lien, G. Tell, K. Klepp, 2004 .

Youth involvement in policy processes in public health, education, and social work: Protocol for a scoping review

H. Rutter, G. Flodgren, K. Klepp, 2023, Obesity reviews : an official journal of the International Association for the Study of Obesity.

International Journal of Behavioral Nutrition and Physical Activity Personal, Social and Environmental Correlates of Vegetable Intake in Normal Weight and Overweight 9 to 13-year Old Boys

Ilse de Bourdeaudhuij, J. Brug, A. Yngve, 2022 .

International Journal of Behavioral Nutrition and Physical Activity Free School Fruit – Sustained Effect Three Years Later

Ø. Skare, E. Bere, M. Veierød, 2022 .

Knowledge, perceived risk of AIDS and sexual behavior among primary school children in two areas of Tanzania

K. Klepp, S. Ndeki, Gilbert R. Mliga, 1994 .

Perceived function of and barriers to condom use in Arusha and Kilimanjaro regions of Tanzania.

G. Kvåle, K. Klepp, K. S. Mnyika, 1995, AIDS care.

Status and visions for the school health service as reported by local health care workers in Northern Tanzania.

K. Klepp, R. Manongi, M. Masatu, 2008, East African journal of public health.

International Journal of Behavioral Nutrition and Physical Activity Changes in Accessibility and Preferences Predict Children's Future Fruit and Vegetable Intake

E. Bere, K. Klepp, 2004 .

Herpes simplex virus type-2 and human immunodeficiency virus infections in a rural population in Kilimanjaro Tanzania.

B. Stray-Pedersen, K. Klepp, E. Mmbaga, 2011, East African journal of public health.

Influences of social groups on eating patterns: A study among young adults

K. Klepp, Lisbet Øygard, 1996, Journal of Behavioral Medicine.