The Danish National Survey of Diet and Physical Activity 2021-2023 (DANSDA)

The Danish National Survey of Diet and Physical Activity (DANSDA) 2021-23 is a nationally representative, cross-sectional survey of dietary and physical activity habits of 4-80 year-old Danes, and is carried out at the National Food Institute, Technical University of Denmark (DTU Food). DANSDA provides high quality, nationally representative data on diet, physical activity, smoking, alcohol and weight status in Denmark.

Study Overview

• Status: Enrolling by invitation
• Conditions: Diet Habit; Lifestyle; Nutritional and Metabolic Disease

Detailed Description

The principal objective of DANSDA is to monitor dietary intake and physical activity in a representative sample of the Danish population aged 4-80 years, and provide data for surveillance of the food and nutrient intake and physical activity of the general population.

The survey is a nationally representative cross-sectional survey, which includes face-to-face interviews, anthropometric measurements, blood pressure measurement, blood sampling, 7-day web-based food diaries, and pedometer-determined physical activity which is recorded in 7-day web-based step diaries. In the interview socio-demographic details as well as lifestyle and health attitudes are recorded. Web-based food and step diaries are collected in the entire survey population of 4000 individuals, blood pressure is measured in 15-80 year-olds, and biological samples (blood) are collected in a subpopulation of approximately 1000 individuals aged 40-70 years. Biomarker of metabolic health are measured in a blood sample drawn after an overnight fast. The blood-based biomarkers (cholesterol, triglycerides, glucose), anthropometric data and blood pressure measurements are used to assess the prevalence of the metabolic syndrome (WHO definition) in 40-70 year-old Danes. Surplus blood samples are stored in a biobank for 30 years.

The data from the survey provide the evidence base to support work by the authorities to facilitate the adoption of healthier eating and physical activity behavior and reduce lifestyle-related diseases. Another objective is to provide detailed data on food consumption at the individual level, which enables food chemical exposure assessment and forms an essential part of food safety risk assessment. Furthermore, the data will be used to assess the environmental impact of the diet.

• Study Type: Observational
• Enrollment (Estimated): 4000

Contacts and Locations

Study Locations

• Denmark
  • Kgs Lyngby
    • Copenhagen, Kgs Lyngby, Denmark, 2800
      • Technical University of Denmark

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 4 years to 80 years (Child, Adult, Older Adult)
• Accepts Healthy Volunteers: Yes

• Sampling Method: Probability Sample

Study Population

The survey population consists of a nationally representative sample of 4-80-year-old Danes, randomly drawn from the Danish Civil Registration system.

Description

Inclusion Criteria:

• Danish Citizen
• 4-80 years old
• Sufficient Danish language proficiency

Exclusion Criteria:

• Care home resident

Study Plan

How is the study designed?

Design Details

• Observational Models: Other
• Time Perspectives: Cross-Sectional

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Dietary intake	Dietary intake is assessed by a 7-day web-based food diary.	Baseline

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Physical activity	Physical activity is assessed by pedometer recordings over 7 days, measured as daily steps	Baseline
Intakes of rare food products	Supplementary food frequency questionnaire (FFQ) focusing on foods consumed occasionally	Baseline
Blood pressure	Average of three blood pressure measurements (systolic and diastolic blood pressure) using a validated blood pressure monitor, measured in mmHg. Measured among 15-80-year-olds.	Baseline
Waist circumference	Waist circumference, measured in cm	Baseline
Body mass index	Weight and height will be combined to report BMI in kg/m^2	Baseline
Fasting glucose	Fasting glucose concentration in plasma, measured in mmol/l among 40-70-year-olds	Baseline
Triglyceride	Plasma triglyceride concentration, measured in mmol/l among 40-70-year-olds	Baseline
HDL cholesterol	Plasma HDL concentration, measured in mmol/l among 40-70-year-olds	Baseline
Total cholesterol	Plasma total cholesterol concentration, measured in mmol/l among 40-70-year-olds	Baseline
Metabolic syndrome score	Waist circumference, blood pressure, HDL cholesterol, triglycerides and fasting glucose will be combined to report metabolic syndrome score among 40-70-year-olds.	Baseline
Socio-demographic background information through personal interview	Personal interview about socio-demographic background, lifestyle and health attitudes	Baseline

Collaborators and Investigators

• Sponsor: Technical University of Denmark
• Investigators: Principal Investigator: Sisse Fagt, Technical University of Denmark

Publications and helpful links

Helpful Links

• Survey home page

Study record dates

Study Major Dates

• Study Start (Actual): September 1, 2021
• Primary Completion (Estimated): March 31, 2024
• Study Completion (Estimated): June 30, 2024

Study Registration Dates

• First Submitted: February 27, 2020
• First Submitted That Met QC Criteria: March 16, 2020
• First Posted (Actual): March 19, 2020

Study Record Updates

• Last Update Posted (Estimated): December 13, 2023
• Last Update Submitted That Met QC Criteria: December 12, 2023
• Last Verified: July 1, 2023

More Information

Terms related to this study

• Keywords: Metabolic syndrome; Nutrition; Physical activity; Diet; Blood pressure; BMI; Lifestyle; Waist circumference; Anthropometrics; Pedometer-determined steps; Metabolic health biomarkers
• Additional Relevant MeSH Terms: Metabolic Diseases
• Other Study ID Numbers: H-19033428

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No