Condition category
Nutritional, Metabolic, Endocrine
Date applied
08/08/2017
Date assigned
31/08/2017
Last edited
25/09/2017
Prospective/Retrospective
Retrospectively registered
Overall trial status
Ongoing
Recruitment status
Recruiting

Plain English Summary

Background and study aims
Nutrition is an important public health issue because of its role in obesity and many diet-related diseases. The National Diet and Nutrition Survey (NDNS) asks a sample of people across the UK to record what they have eaten. This is used by the UK government to look at the types of food people eat and the nutrients they take in. NDNS has been carried out every year since 2008 and this helps the government understand how the nation's diet is changing and make decisions that improve public health and protect food safety.

Who can participate?
Participants are randomly selected from private households in the UK.

What does the study involve?
The study has two stages all of which are carried out in the participant’s home. Individuals who take part in stage one do not have to take part in stage two. For stage one, individuals are asked by a trained interviewer about their eating habits, health and physical activity levels and have their height and weight measured. They are then asked to keep a food diary for four days and record everything they have to eat and drink in that period. They are also asked to provide a urine sample to test for iodine status. For stage two, a qualified nurse visits to measure their waist and hip circumference and take a blood sample to test for many nutrients including iron, vitamin D and cholesterol. All this takes place over two months.

What are the possible benefits and risks of participating?
Participants may benefit from receiving personalized feedback on their diet based on their food diary. They are also able to receive results from their blood sample which highlights any abnormal findings. There are no risks with participating.

Where is the study run from?
This study is being run by National Centre for Social Research (NatCen) (UK) and Medical Research Council Elsie Widdowson Laboratory (UK) and takes place in private households in the UK.

When is the study starting and how long is it expected to run for?
March 2007 to December 2018

Who is funding the study?
National Centre for Social Research (NatCen) (UK)

Who is the main contact?
1. Mrs Polly Page (Scientific)
Polly.Page@mrc-ewl.cam.ac.uk
2. Mrs Beverley Bates (Scientific)
Beverley.Bates@natcen.ac.uk

Trial website

http://nationaldiet.co.uk/how-ndns-works.aspx

Contact information

Type

Scientific

Primary contact

Mrs Polly Page

ORCID ID

Contact details

MRC Elsie Widdowson Laboratory
120 Fulbourn Road
Cambridge
Cambridgeshire
CB1 9NL
United Kingdom
+44 1223 426356
Polly.Page@mrc-ewl.cam.ac.uk

Type

Scientific

Additional contact

Mrs Beverley Bates

ORCID ID

Contact details

NatCen Centre for Social Research
35 Northampton Square
London
London
EC1V 0AX
United Kingdom
+44 20 7250 1866
Beverley.Bates@natcen.ac.uk

Additional identifiers

EudraCT number

ClinicalTrials.gov number

Protocol/serial number

NDNS RP Main Protocol

Study information

Scientific title

National Diet and Nutrition Survey Rolling Programme 2008/09 - 2017/18 (Years 1-10)

Acronym

NDNS RP

Study hypothesis

The purpose of the survey is to provide data to enable monitoring of the diet and nutritional well-being of the UK population to provide the evidence base for developing Government policy. Specifically, the NDNS dataset must allow Public Health England (PHE; previously Department of Health) and the Food Standards Agency to:
1. Measure progress towards dietary recommendations
2. Monitor trends in food consumption, nutrient intake and nutritional status in different population age groups
3. Describe the characteristics of those with intakes and/or status of specific nutrients that are above or below the national average
4. Assess the extent to which the diet of the population as a whole and sub-groups deviates from that recommended by independent experts
5. Calculate likely exposure to natural toxicants, contaminants, additives and other food chemicals for risk assessment

Ethics approval

Years 1-5 - Oxford A REC, 30/03/2007, ref: 07/H0604/113
Years 6-10 - Cambridge South REC, 19/03/2013, ref: 13/EE/0016

Study design

Observational cross-sectional study using complex survey design and probability sampling model with a continuous UK-wide fieldwork model designed to be nationally representative on an annual basis

Primary study design

Observational

Secondary study design

Cross sectional study

Trial setting

Home

Trial type

Other

Patient information sheet

Appendix C assessed from https://www.gov.uk/government/statistics/ndns-results-from-years-5-and-6-combined

Condition

Diet and nutritional well-being of the UK population

Intervention

The survey has two stages all of which are carried out in the participant’s home. Individuals who take part in stage one do not have to take part in stage two. For stage one, individuals are asked to do a face-to-face interview to collect information on general eating habits, physical activity and health and have their height and weight measured. Individuals are asked to keep an estimated (unweighed) food and drink diary for four days and provide a urine sample. For stage two, a nurse visits to carry out additional measures for waist and hip circumference and take a blood sample. Participation in both stages is over two months.

Intervention type

Behavioural

Phase

Drug names

Primary outcome measures

1. Data on the food and nutrient intakes, sources of nutrients and nutritional status of the UK population is measured using the estimated (unweighed) food and drink diary
2. Food consumption data from the diaries will be used to calculate intakes of natural toxicants, contaminants, additives and other food chemicals
3. Evidence of nutritional status or dietary biomarkers, and to relate these to dietary, physiological and social data is measured using blood and urine tests

Secondary outcome measures

1. Anthropometric measurements are measured using a portable stadiometer, Tanita scales and an ‘Easy Check Circumference Measurement’ tape
2. Physical activity level is assessed using the Recent Physical Activity Questionnaire (RPAQ) within three days of completing the food diary

Overall trial start date

30/03/2007

Overall trial end date

31/12/2018

Reason abandoned

Eligibility

Participant inclusion criteria

The NDNS Rolling Programme includes participants of all ages from 1.5 years upwards free-living in private households in the UK.

Participant type

Other

Age group

Mixed

Gender

Both

Target number of participants

1,000 per year (plus country boosts where funded)

Participant exclusion criteria

1. Infants and children aged under 18 months
2. Pregnant and lactating women
3. People living in institutions, e.g. children’s homes, prisons, residential homes for older people, hospitals
4. Homeless people and others with no fixed address

Recruitment start date

03/12/2007

Recruitment end date

30/05/2018

Locations

Countries of recruitment

United Kingdom

Trial participating centre

NatCen Social Research
35 Northampton Square London
London
EC1V 0AX
United Kingdom

Trial participating centre

Medical Research Council Elsie Widdowson Laboratory
120 Fulbourn Road Cambridge
Cambridgeshire
CB1 9NL
United Kingdom

Sponsor information

Organisation

National Centre for Social Research (NatCen)

Sponsor details

NatCen
35 Northampton Square
London
London
EC1V 0AX
United Kingdom
+44 207 549 7180
Gillian.Prior@natcen.ac.uk

Sponsor type

Research organisation

Website

http://natcen.ac.uk/

Funders

Funder type

Government

Funder name

Public Health England

Alternative name(s)

PHE

Funding Body Type

government organisation

Funding Body Subtype

Federal/National Government

Location

United Kingdom

Results and Publications

Publication and dissemination plan

Data is available on the UK Data Archive. The next NDNS RP report will be for Years 7 and 8 and is due to be published 29/01/2018.
1. https://www.gov.uk/government/statistics/national-diet-and-nutrition-survey-results-from-years-1-to-4-combined-of-the-rolling-programme-for-2008-and-2009-to-2011-and-2012
2. https://www.gov.uk/government/publications/assessment-of-dietary-sodium-levels-among-adults-aged-19-64-in-england-2011
3. https://www.gov.uk/government/statistics/national-diet-and-nutrition-survey-assessment-of-dietary-sodium-in-adults-in-england-2014
4. https://www.gov.uk/government/statistics/ndns-results-from-years-5-and-6-combined
5. http://www.foodstandards.gov.scot/publications-and-research/national-diet-and-nutrition-survey-rolling-programme-results-from-years-1-4
6. http://www.foodstandards.gov.scot/publications-and-research/national-diet-and-nutrition-survey-assessment-of-dietary-sodium
7. https://www.food.gov.uk/northern-ireland/researchni/ndns-ni
8. https://www.food.gov.uk/northern-ireland/nutritionni/national-diet-and-nutrition-survey-assessment-of-dietary-sodium
9. http://gov.wales/statistics-and-research/national-diet-nutrition-survey-rolling-programme/?lang=en

IPD sharing statement:
Anonymised data from the interview, food diary, physical measurements and blood and urine samples is made publically available through the UK Data Archive http://data-archive.ac.uk/. Access is through registration with the UK Data Archive. Data is reported for combined survey years and so is deposited on the archive around two to three years after each survey year has been completed. Participants are told in the information sheets that their data will be shared but that they will not be identifiable. No formal consent is obtained.

Intention to publish date

29/01/2018

Participant level data

Stored in repository

Results - basic reporting

Publication summary

Publication citations

Additional files

Editorial Notes

25/09/2017: Please note that this study is recruiting but are not advertising for participants. 22/09/2017: Internal review