NCT03283332

Brief Summary

Black and ethnic minority groups living in the UK experience high rates of chronic diseases such as diabetes, hypertension and heart disease, general morbidity and poor mental health. The cause of these excess rates is unknown but obesity, smoking, diet and deprivation are important contributing factors. There is also global evidence of the association of these diseases in adulthood with health and deprivation in early life and childhood. Persisting social deprivation over the lifecourse is disproportionately borne by some ethnic minorities (Harding and Balarajan 2001) but the impact on the health of their children is virtually unknown. Least is known about the health of Black Caribbean young people. It is important to examine risk factor differences by social predictors within the ethnic minority groups as well as between them. The DASH Study started as a school-based cohort study of adolescents from the main ethnic groups (White British, Black Caribbean, Black African, Indian, Pakistani and Bangladeshi) in 10 London boroughs. Wave 1 took place in 2002/03 (MREC Ref: MREC/2/10/12), when participants were aged 11-13 years (school years 7 and 8). Wave 2 took place in 2005/06 (MREC Ref: 05/MRE10/43) when they were 14-16 years (school years 9 and 10). Wave 3 took place in 2010/2011, when participants were aged 19-21 years and involved a postal follow-up complemented by telephone interview and on-line questionnaires. The current proposal is for a feasibility study, using a small sample of the DASH cohort, to inform the design of the next full face-to-face follow-up. DASH will be the first large scale UK longitudinal cohort of ethnic minority youths with both social and biological measures from childhood to early adulthood. It will allow detailed examination of ethnic differences in the social patterning of biological mechanisms and pre-clinical disease in young adulthood.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
6,643

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Dec 2011

Shorter than P25 for all trials

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 1, 2011

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2012

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2012

Completed
4.8 years until next milestone

First Submitted

Initial submission to the registry

September 8, 2017

Completed
6 days until next milestone

First Posted

Study publicly available on registry

September 14, 2017

Completed
Last Updated

September 14, 2017

Status Verified

September 1, 2017

Enrollment Period

1 year

First QC Date

September 8, 2017

Last Update Submit

September 12, 2017

Conditions

Keywords

Ethnicityadolescentscohortlongitudinalhealth inequalities

Outcome Measures

Primary Outcomes (3)

  • Response rate

    Percentage response rates - overall, per item/physical measure

    Through study completion, on average 10 years

  • Interview duration

    Mean length of time for interview

    Through study completion, on average 10 years

  • physical measures duration

    Mean length of time for physical/biological measures

    Through study completion, on average 10 years

Secondary Outcomes (19)

  • Weight

    Through study completion, on average 10 years

  • Height

    Through study completion, on average 10 years

  • waist circumference

    Through study completion, on average 10 years

  • blood pressure

    Through study completion, on average 10 years

  • Body fat

    Through study completion, on average 10 years

  • +14 more secondary outcomes

Interventions

Eligibility Criteria

Age11 Years - 13 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)
Sampling MethodProbability Sample
Study Population

School children, aged 11-13 years, representing the main UK ethnic groups (White-European, Black African, Black Caribbean, Indian, Pakistani/Bangladeshi, Other, mainly mixed race).

You may qualify if:

  • provision of informed consent

You may not qualify if:

  • none

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (10)

  • Harding S, Whitrow M, Maynard MJ, Teyhan A. Cohort profile: The DASH (Determinants of Adolescent Social well-being and Health) Study, an ethnically diverse cohort. Int J Epidemiol. 2007 Jun;36(3):512-7. doi: 10.1093/ije/dym094. Epub 2007 Jul 30. No abstract available.

  • Lu Y, Sooky L, Silva MJ, Molaodi OR, Karamanos A, Cruickshank JK, Harding S. Longitudinal study of the influence of lung function on vascular health from adolescence to early adulthood in a British multiethnic cohort. J Hypertens. 2017 Nov;35(11):2185-2191. doi: 10.1097/HJH.0000000000001455.

  • Harding S, Silva MJ, Molaodi OR, Enayat ZE, Cassidy A, Karamanos A, Read UM, Cruickshank JK. Longitudinal study of cardiometabolic risk from early adolescence to early adulthood in an ethnically diverse cohort. BMJ Open. 2016 Dec 14;6(12):e013221. doi: 10.1136/bmjopen-2016-013221.

  • Faconti L, Silva MJ, Molaodi OR, Enayat ZE, Cassidy A, Karamanos A, Nanino E, Read UM, Dall P, Stansfield B, Harding S, Cruickshank KJ. Can arterial wave augmentation in young adults help account for variability of cardiovascular risk in different British ethnic groups? J Hypertens. 2016 Nov;34(11):2220-6. doi: 10.1097/HJH.0000000000001066.

  • Harding S, Read UM, Molaodi OR, Cassidy A, Maynard MJ, Lenguerrand E, Astell-Burt T, Teyhan A, Whitrow M, Enayat ZE. The Determinants of young Adult Social well-being and Health (DASH) study: diversity, psychosocial determinants and health. Soc Psychiatry Psychiatr Epidemiol. 2015 Aug;50(8):1173-88. doi: 10.1007/s00127-015-1047-9. Epub 2015 Apr 11.

  • Whitrow MJ, Harding S. Asthma in Black African, Black Caribbean and South Asian adolescents in the MRC DASH study: a cross sectional analysis. BMC Pediatr. 2010 Mar 25;10:18. doi: 10.1186/1471-2431-10-18.

  • Harding S, Teyhan A, Maynard MJ, Cruickshank JK. Ethnic differences in overweight and obesity in early adolescence in the MRC DASH study: the role of adolescent and parental lifestyle. Int J Epidemiol. 2008 Feb;37(1):162-72. doi: 10.1093/ije/dym252. Epub 2008 Jan 19.

  • Maynard MJ, Harding S, Minnis H. Psychological well-being in Black Caribbean, Black African, and White adolescents in the UK Medical Research Council DASH study. Soc Psychiatry Psychiatr Epidemiol. 2007 Sep;42(9):759-69. doi: 10.1007/s00127-007-0227-7. Epub 2007 Jun 29.

  • Harding S, Maynard MJ, Cruickshank K, Teyhan A. Overweight, obesity and high blood pressure in an ethnically diverse sample of adolescents in Britain: the Medical Research Council DASH study. Int J Obes (Lond). 2008 Jan;32(1):82-90. doi: 10.1038/sj.ijo.0803662. Epub 2007 Jun 19.

  • Harding S, Maynard M, Cruickshank JK, Gray L. Anthropometry and blood pressure differences in black Caribbean, African, South Asian and white adolescents: the MRC DASH study. J Hypertens. 2006 Aug;24(8):1507-14. doi: 10.1097/01.hjh.0000239285.20315.4d.

Study Officials

  • Seeromanie Harding, PhD

    King's College London

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 8, 2017

First Posted

September 14, 2017

Study Start

December 1, 2011

Primary Completion

December 1, 2012

Study Completion

December 1, 2012

Last Updated

September 14, 2017

Record last verified: 2017-09

Data Sharing

IPD Sharing
Will share

The DASH data are available to researchers via a data request to the MRC Social and Public Health Science Unit. Applications and the data sharing policy for DASH can be found at http://dash.sphsu.mrc. ac.uk/DASH\_dsp\_v1\_November-2012\_draft.pdf. It reflects the MRC guidance on data sharing with the aim of making the data as widely and freely available as possible while safeguarding the privacy of participants, protecting confidential data, and maintaining the reputation of the study. All potential collaborators work with a link person, an experienced DASH researcher-to support their access to and analysis of the data. The variable-level metadata is available from the study team and also via the MRC Data Gateway.

Shared Documents
STUDY PROTOCOL, ICF
Time Frame
Data available from 2014 for 10 years.
More information