Individual Study / Y2K

Swedish Youth 2000 Cohort

Swedish Youth 2000 Cohort

Networks -
Datasets -
Variables -
Start Year
1993
End Year
1999

Members

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Investigators Contacts
  • Prof. Johan Sundström
    Uppsala University
  • Prof. Johan Sundström
    Uppsala University
  • MD Gullik Gulliksson
    Uppsala University

Design

Study design
Cohort
Follow Up
Participants were followed-up on three occasions, at 15, 17 and 20 years of age.
Supplementary Information

Marker Paper

Samuelson G et al. Food habits and energy and nutrient intake in Swedish adolescents approaching the year 2000. Acta Paediatr Suppl. 1996 Sep;415:1-19.

PUBMED 8955480

Recruitment

Recruitment Target
  • Individuals

Number of Participants

Number of Participants
411
Number of Participants with Biological Samples
398

Access

Availability of data and biosamples

Possible Access to Data
Possible Access to Biosamples
Other

Timeline

Y2K population

Selection Criteria
Minimum age
15
Maximum age
21
Newborns
Twins
Countries
  • Sweden
Territory
Uppsala and Trollhättan
Ethnic Origin
Health Status
  • Healthy according to the school health records and a clinical examination performed during this study
Other Criteria
Two socioeconomically different cities and live in the central areas of the two cities.

Recruitment

Sources of recruitment
  • General population
General Population
  • Selected sample
Supplementary Information
Fifteen-year-old adolescents living in the university city of Uppsala and the industrial town of Trollhättan were randomly selected from the official population register. The selected subjects were invited by letter to participate in the study and subsequently, contacted by telephone.

Number of Participants

Number of Participants
411
Number of Participants with Biological Samples
398
Data Collection Events
# Name Description Start End
0 Y2K - Baseline 15 years Questionnares collected information about nutrition, reproduction, medication, smoke habits, sleep, lifestyle and behaviours. Participants completed the Food Frequency Questionnaire (FFQ) and ... 1993 1994
1 Y2K – Follow-up 17 years Questionnares collected information about nutrition, reproduction, medication, smoke habits, sleep, lifestyle and behaviours. Participants completed the Food Frequency Questionnaire (FFQ) and ... 1995 1996
2 Y2K – Follow-up 21 years Questionnares collected information about nutrition, reproduction, medication, smoke habits, sleep, lifestyle and behaviours. Participants completed the Food Frequency Questionnaire (FFQ) and ... 1999 1999

Classifications

Socio-demographic and economic characteristics
Lifestyle and behaviours
Birth, pregnancy and reproductive health history
Perception of health, quality of life, development and functional limitations
Diseases
Symptoms and signs
Medication and supplements
Non-pharmacological interventions
Health and community care services utilization
Death
Physical measures and assessments
Laboratory measures
Cognition, personality and psychological measures and assessments
Life events, life plans, beliefs and values
Preschool, school and work life
Social environment and relationships
Physical environment
Administrative information
Tobacco
Alcohol
Drugs
Nutrition
Breastfeeding
Physical activity
Sleep
Sexual behaviours and orientation
Technological devices
Misbehaviour and criminality
Other and unspecified lifestyle information

Socio-demographic and economic characteristics

Age/birthdate
Education
Residence
Labour force and retirement

Lifestyle and behaviours

Tobacco
Alcohol
Nutrition
Physical activity
Transportation
Sleep

Birth, pregnancy and reproductive health history

Puberty, menstruation, menopause and andropause
Contraception

Perception of health, quality of life, development and functional limitations

Perception of health

Diseases

Diseases without precise specification or falling into multiple categories

Medication and supplements

Medication and supplement intake

Non-pharmacological interventions

Educational and health promotion interventions

Physical measures and assessments

Anthropometry
Circulation and respiration
Muscles, skeleton and mobility
Skin and subcutaneous tissue
Other physical measures and assessments

Laboratory measures

Hematology
Biochemistry

Life events, life plans, beliefs and values

Beliefs and values

Administrative information

Identifiers
Date and time-related information
Physical and cognitive measure and biosample-related information

Nutrition

Food Frequency Questionnaire (different forms)