Clinical trial NCT03244150: Youth and Sport Study
Official title: Youth and Sport Study - a 20 Year Follow-up Study of Danish Teenagers Born Between 1964 and 1969
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Physical Activity
Obesity
Lifestyle
Keywords: Physical activity
Obesity
Overweight
Lifestyle
Diet
Lead sponsor: Bispebjerg Hospital
Sponsor class: OTHER
Collaborators: name: the Danish Medical Research Council (grant number 09-060078/FSS)
name: The Danish Ministry of Health (2003-0200-13)
name: Aase and Ejnar Danielsens Foundation
name: The Copenhagen Hospital Corporation (now Copenhagen Capital Region)
First posted: 2017-08-09
Enrollment: 3008
Sex: ALL
Minimum age (years): 15
Maximum age (years): 19
Standard ages: CHILD
ADULT
Observational model: COHORT
Time perspective: PROSPECTIVE
Sampling method: PROBABILITY_SAMPLE
Study population: The first baseline study included 1260 students in gymnasium, vocational school, or trade school born in 1964-68.

The second baseline study included a representative sample of 2498 teenagers born in 1967 or 1969 (1.5% of the total population).

Brief summary: The Youth and Sport Study (YSS) is a 20-22-year follow-up study of Danish teenagers born between 1964 and 1969. Baseline data originate from two different studies carried out in 1983 and 1985, and the follow-up study was carried out in 2005.

Detailed description: The first baseline study was conducted in 1983 and included 1260 students in high school or trade school. The questionnaire was designed with focus on various aspects of sports and physical activity beside more general questions on family, socioeconomic status, height, weight, alcohol intake, smoking, etc. Furthermore, the participants were subjected to a set of physical tests and measurements.

The second baseline study was conducted in 1985 and included a representative sample of 2498 teenagers drawn from the Danish Civil Registration (CPR) and invited to participate in the study with the aim of validating the results from the first baseline sample. The study consisted of a questionnaire with virtually the same questions as the questionnaire from 1983. A short 28-item food frequency questionnaire (FFQ) was added to the questionnaire, as well as a few questions about dietary habits.

The follow-up study was carried out in 2005, when the subjects had reached an age of around 40 years. A total of 1904 subjects were traced and asked to complete a general questionnaire, a food frequency questionnaire, and deliver a DNA sample, all distributed and returned through mail correspondence. The general questionnaire included questions on education, occupation, height, previous and present weight, weight loss history, physical activity, smoking, civil status, children, other family, stress, diseases, hospital admissions, and medicine use, among other things. The questions about physical activity were adopted from the baseline questionnaire. Other questions were adopted from other validated questionnaires. Moreover, a semi-quantitative, 195-item Food Frequency Questionnaire (FFQ), which previously has been used and validated in the Danish "Diet, Cancer and Health" study was included. The study was approved by the local ethics committee for Copenhagen and Frederiksberg (J.nr. KF 01-260/04).

Eligibility criteria: Danish teenagers born between 1964 and 1969.

Primary outcomes:
measure: Physical activity
timeFrame: Collected/measured in 1983 or 1985 and at follow-up in 2005
Secondary outcomes:
measure: Body Mass Index (BMI)
timeFrame: Weight was reported in 1983 or 1985 and at follow-up in 2005
measure: Waist circumference
timeFrame: Waist circumference was at follow-up in 2005
measure: Alcohol consumption
timeFrame: Alcohol consumption was reported in 1983 or 1985 and at follow-up in 2005
measure: Smoking
timeFrame: Information on smoking was reported in 1983 or 1985 and at follow-up in 2005
measure: Education and occupation
timeFrame: Information on education and occupation was reported in 2005
measure: Parental education and occupation
timeFrame: Information on education and occupation was reported in 1983 or 1985
measure: Macronutrient intake
timeFrame: Information on macronutrient intake was reported in 2005
Other outcomes:
Locations:
city: Frederiksberg
country: Denmark
facility: Parker Institute
Study officials:
References:
citation: Poudel P, Ismailova K, Andersen LB, Larsen SC, Heitmann BL. Adolescent wine consumption is inversely associated with long-term weight gain: results from follow-up of 20 or 22 years. Nutr J. 2019 Sep 10;18(1):56. doi: 10.1186/s12937-019-0478-7.