Dortmund Nutritional and Anthropometric Longitudinally Designed Study

Organizational Data

DRKS-ID:
DRKS00029092
Recruitment Status:
Recruiting ongoing
Date of registration in DRKS:
2022-06-09
Last update in DRKS:
2024-02-16
Registration type:
Retrospective

Acronym/abbreviation of the study

DONALD Study

URL of the study

http://www.donald-studie.de

Brief summary in lay language

The DONALD study is a longitudinal study in which 30-40 infants from the Dortmund area have been recruited every year since 1985 and followed into adulthood. At the examination in the study center, which are usually conducted annually, the subjects are anthropometrically measured, medically examined and fill out questionnaires. Subsequently, a 3-day weighed dietary record is conducted at home and a 24-hour urine is collected from the age of 3-4 years.

Brief summary in scientific language

The DONALD study is an open cohort study in which 30-40 infants from the Dortmund area have been recruited each year since 1985 and followed into adulthood. Recruitment is non-systematic. The examinations are quarterly in the 1st year of life, semi-annually in the 2nd year, and annually thereafter. Since 2004, adult participants have also been invited to an examination every 5 years. At the examination appointments at the study center, subjects are anthropometrically measured (e.g., height, weight, skin folds), medically examined, and complete questionnaires (e.g., chronotype, physical activity). Subsequently, a 3-day weighed dietary record protocol is conducted at home (validated against nitrogen excretion in urine) and a 24h urine is collected from the age of 3-4 years. Blood is also drawn from the participants at the adult examinations. To date (as of the end of 2021), a total of 1.800 subjects have participated in the study, of which 24,000 anthropometric measurements, 18,000 dietary records, 10.000 24h urine samples and 1,200 blood samples are available. Since recruitment is continuous and there is no end date for the study, there is no planned number of study participants or measurements.

Health condition or problem studied

Free text:
Adiposity, body composition, growth, cardiometabolic risk markers in adulthood, carotid intima media thickness, thyroid volume, metabolic and excretory parameters in 24-h urine, description of modern infant, child, and adolescent dietary habits
Healthy volunteers:
No Entry

Interventions, Observational Groups

Arm 1:
Surveys: Anthropometry, dietary record at each examination, 24h urine from age 3-4 years, questionnaires (e.g. chronotype, physical activity, etc.) according to age, ultrasound of thyroid and carotid intima media from age 12 years, blood pressure from age 6 years, parental data (anthropometry, blood pressure, questionnaires e.g. on socioeconomic status) every 4 years.

Endpoints

Primary outcome:
Longitudinal, observational study during growth, therefore no primary endpoints.
Secondary outcome:
- not applicable -

Study Design

Purpose:
Prevention
Retrospective/prospective:
No Entry
Study type:
Non-interventional
Longitudinal/cross-sectional:
No Entry
Study type non-interventional:
Epidemiological study

Recruitment

Recruitment Status:
Recruiting ongoing
Reason if recruiting stopped or withdrawn:
No Entry

Recruitment Locations

Recruitment countries:
  • Germany
Number of study centers:
Monocenter study
Recruitment location(s):
  • Other Universität Bonn/Studienzentrum Dortmund Dortmund

Recruitment period and number of participants

Planned study start date:
No Entry
Actual study start date:
1985-05-01
Planned study completion date:
No Entry
Actual Study Completion Date:
No Entry
Target Sample Size:
No Entry
Final Sample Size:
No Entry

Inclusion Criteria

Sex:
All
Minimum Age:
3 Months
Maximum Age:
9 Months
Additional Inclusion Criteria:
Healthy infants from the Dortmund region from families with sufficient knowledge of the German language

Exclusion Criteria

Children with diagnosed diseases that are likely to alter growth, nutrition or metabolism, places of residence outside the Dortmund region, insufficient knowledge of the German language on the part of the parents

Addresses

Primary Sponsor

Address:
Rheinische Friedrich-Wilhelms-Universität Bonn Institut für Ernährungs- und Lebensmittelwissenschaften (IEL) Lehrstuhl für Ernährungsepidemiologie
Prof. Dr. Ute Nöthlings
Friedrich-Hirzebruch-Allee 7
53115 Bonn
Germany
Telephone:
0228 73 60490
Fax:
0228 73 60492
Contact per E-Mail:
Contact per E-Mail
URL:
https://www.ernaehrungsepidemiologie.uni-bonn.de/
Investigator Sponsored/Initiated Trial (IST/IIT):
Yes

Contact for Scientific Queries

Address:
Universität Bonn, IEL, Lehrstuhl Ernährungsepidemiologie
Prof. Dr. Ute Nöthlings
Friedrich-Hirzebruch-Allee 7
53115 Bonn
Germany
Telephone:
02287360490
Fax:
02287360492
Contact per E-Mail:
Contact per E-Mail
URL:
https://www.ernaehrungsepidemiologie.uni-bonn.de/

Contact for Public Queries

Address:
Universität Bonn, IEL, DONALD-Studie
PD Dr. Ute Alexy
Heinstück 11
44225 Dortmund
Germany
Telephone:
023179221027
Fax:
023179221033
Contact per E-Mail:
Contact per E-Mail
URL:
http://www.donald-studie.de

Principal Investigator

Address:
Universität Bonn, IEL, Lehrstuhl Ernährungsepidemiologie
Prof. Dr. Ute Nöthlings
Friedrich-Hirzebruch-Allee 7
53115 Bonn
Germany
Telephone:
02287360490
Fax:
02287360492
Contact per E-Mail:
Contact per E-Mail
URL:
https://www.ernaehrungsepidemiologie.uni-bonn.de/

Sources of Monetary or Material Support

Public funding institutions financed by tax money/Government funding body (German Research Foundation (DFG), Federal Ministry of Education and Research (BMBF), etc.)

Address:
Ministerium für Kultur und Wissenschaft, NRW
Völkinger Straße 49
40221 Düsseldorf
Germany
Telephone:
No Entry
Fax:
No Entry
Contact per E-Mail:
Contact per E-Mail
URL:
https://www.mkw.nrw/

Ethics Committee

Address Ethics Committee

Address:
Ethik-Kommission Medizinische Fakultät Bonn
Venusberg Campus 1, Geb. 02
53105 Bonn
Germany
Telephone:
+49-228-28751282
Fax:
+49-228-28751932
Contact per E-Mail:
Contact per E-Mail
URL:
No Entry

Vote of leading Ethics Committee

Vote of leading Ethics Committee
Date of ethics committee application:
2005-04-27
Ethics committee number:
002/05
Vote of the Ethics Committee:
Approved
Date of the vote:
2005-05-12

Further identification numbers

Other primary registry ID:
No Entry
EudraCT Number:
No Entry
UTN (Universal Trial Number):
No Entry
EUDAMED Number:
No Entry

IPD - Individual Participant Data

Do you plan to make participant-related data (IPD) available to other researchers in an anonymized form?:
Yes
IPD Sharing Plan:
In accordance with the consent form for the participants, the pseudonymized study data are not permitted to be made publicly available. However, the DONALD data may be made available to external researchers upon request for cooperation or data use. In this case, a cooperation or data use agreement must be concluded in advance . The use of the DONALD data by external scientists is therefore only possible with detailed prior justification (scientific purpose) and after agreement of the study head.

Study protocol and other study documents

Publication of study results

Basic reporting

Basic Reporting / Results tables:
No Entry
Brief summary of results:
No Entry