Ask to take part

Contact the study team using the details below to take part. If there are no contact details below please ask your doctor in the first instance.

Contact Information:

Dr Naomi Dickson
+44 (0)28961 51447
MARCH@nictu.hscni.net


Dr Ashley Agus
+44 (0)28961 51447
Ashley.Agus@nictu.hscni.net


More information about this study, what is involved and how to take part can be found on the study website.

Study Location:

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Be Part of Research - Trial Details - Promoting group identity to improve questionnaire return rates in a multicentre randomised controlled trial

Promoting group identity to improve questionnaire return rates in a multicentre randomised controlled trial

Medical Conditions

Trial follow up/retention


This information is provided directly by researchers, and we recognise that it isn't always easy to understand. We are working with researchers to improve the accessibility of this information. In some summaries, you may come across links to external websites. These websites will have more information to help you better understand the study.


When participants stay involved in a clinical trial after their treatment has finished, it allows researchers to collect important follow-up information about the study treatments. Unfortunately, participants often drop out of the study before the end, and the reasons for this are poorly understood. High levels of patient dropout is a particular problem in clinical trials that involve patients in critical care. This may be because participants are recruited when they are unconscious and lack capacity. Participants may not understand how important it is to collect information about people’s health several months after they are discharged from ICU.
Researchers want to see if they can improve the collection of follow-up information in the MARCH trial by running a small study at the same time, called a Study Within a Trial (or SWAT). SWATs help researchers find out the best way to run studies. The researchers want to know whether communication aimed at making people feel part of the MARCH study improves the return rate of follow-up questionnaires. After their discharge from hospital, the researchers will send some study participants a thank you card, personalised letters, and a promotional item (e.g. reusable coffee cup) to encourage the feeling of being part of a group. They will then work out if people feel they belong to the study group, and whether belonging to the study group increases the number of patients who complete and return two health-related questionnaires which will be sent 6 months after they first joined the study.

Start dates may differ between countries and research sites. The research team are responsible for keeping the information up-to-date.  

The recruitment start and end dates are as follows:

17 Feb 2022 30 Apr 2025

Participants will be assigned to one of three groups, called ‘S1’, ‘S2’ and ‘S3’, at random (or by chance). This ensures that the groups are compared fairly. The S3 group will receive the letters that would normally be used to contact patients in a clinical trial. This group is known as the control group. Patients in the other two groups (S1 and S2) will both receive a thank you card and specially adapted letters. The S2 group will also receive a promotional item. Participants will not be aware that they are taking part in the SWAT.


In order to take part in the SWAT, patients enrolled in the main MARCH trial must have:
1. Regained consciousness and be able to make decisions for themselves
2. Given consent to continue participation in the main trial
3. Been discharged from hospital

You can take part if:



You may not be able to take part if:


Does not meet the inclusion criteria


Below are the locations for where you can take part in the trial. Please note that not all sites may be open.

  • Royal Free Hospital
    Pond Street
    London
    NW3 2QG
  • Bedford Hospital
    Kempston Road
    Bedford
    MK42 9DJ
  • Aberdeen Royal Infirmary
    Foresterhill Road
    Aberdeen
    AB25 2ZN
  • Musgrove Park Hospital
    Somerset NHS Foundation Trust
    Taunton
    TA1 5DA
  • Royal Hallamshire Hospital
    Glossop Road
    Sheffield
    S10 2JF
  • John Radcliffe Hospital
    Headley Way Headington
    Oxford
    OX3 9DU
  • Queen Elizabeth University Hospital
    1345 Govan Road
    Glasgow
    G51 4TF
  • Addenbrookes
    Addenbrookes Hospital Hills Road
    Cambridge
    CB2 0QQ
  • Derriford Hospital
    Derriford Road Derriford
    Plymouth
    PL6 8DH
  • Northern General Hospital
    Northern General Hospital NHS Trust C Floor, Huntsmnan Building Herries Road
    Sheffield
    S5 7AU
  • North Devon District Hospital
    Raleigh Park
    Barnstaple
    EX31 4JB
  • William Harvey Hospital
    Kennington Road Willesborough
    Ashford
    TN24 0LZ
  • Victoria Hospital
    Hayfield Road
    Kirkcaldy
    KY2 5AH
  • University College London Hospital
    250 Euston Road
    London
    NW1 2PG
  • Royal Devon and Exeter Hospital
    Royal Devon & Exeter Hospital Barrack Road
    Exeter
    EX2 5DW
  • Royal Preston Hospital Lancashire Teaching Hospitals NHS Foundation Trust
    Preston
    PR2 9HT
  • Royal Cornwall Hospital
    Royal Cornwall Hospitals NHS Trust
    Truro
    TR1 3LJ
  • Royal Berkshire Hospital
    Royal Berkshire NHS Foundation Trust
    Reading
    RG1 5AN
  • Leicester Royal Infirmary
    University Hospitals of Leicester NHS Trust
    Leicester
    LE1 5WW
  • Queen Alexandra Hospital
    Portsmouth Hospitals NHS Trust
    Portsmouth
    PO6 3LY
  • Lincoln County Hospital
    Greetwell Road
    Lincoln
    LN2 5QY
  • Royal Liverpool University Hospital
    Liverpool University Hospital NHS Foundation Trust
    Liverpool
    L7 8XP
  • Altnagelvin Hospital
    Western Health and Social Care Trust
    Derry/Londonderry
    BT47 6SB
  • Antrim Area Hospital
    Northern Health and Social Care Trust
    Ballymena
    BT43 6DA
  • Barnsley Hospital
    Barnsley Hospital NHS Foundation Trust
    Barnsley
    S75 2EP
  • Queen Elizabeth Hospital
    University Hospitals Birmingham NHS Foundation Trust
    Birmingham
    B15 2GW
  • Bristol Royal Infirmary
    University Hospitals Bristol and Weston NHS Foundation Trust
    Bristol
    BS1 3NU
  • Royal Infirmary Edinburgh
    NHS Lothian
    Edinburgh
    EH1 3EG
  • Freeman Hospital
    Newcastle upon Tyne Hospitals NHS Foundation Trust
    Newcastle upon Tyne
    NE7 7DN
  • Glasgow Royal Infirmary
    NHS Greater Glasgow and Clyde
    Glasgow
    G12 0XH
  • Gloucester Royal Hospital
    Gloucestershire Hospitals NHS Foundation Trust
    Cheltenham
    GL53 7AN
  • St Thomas' Hospital
    Guy's and St Thomas' NHS Foundation Trust
    London
    SE1 7EH
  • James Cook University Hospital
    South Tees Hospitals NHS Foundation Trust
    Middlesbrough
    TS4 3BW
  • King's College Hospital
    King's College Hospital NHS Foundation Trust
    London
    SE5 9RS
  • Medway Maritime Hospital
    Medway NHS Foundation Trust
    Gillingham
    ME7 5NY
  • Morriston Hospital
    Swansea Bay University Health Board
    West Glamorgan
    SA12 7BR
  • Queen's Medical Centre
    Nottingham University Hospital NHS Trust
    Nottingham
    NG7 2UH
  • Pinderfields Hospital
    The Mid Yorkshire Hospitals NHS Trust
    Wakefield
    WF1 4DG
  • Poole Hospital
    University Hospitals Dorset NHS Foundation Trust
    Poole
    BH15 2JB
  • University Hospital Lewisham
    Lewisham and Greenwich NHS Trust
    London
    SE13 6LH
  • Rotherham District General Hospital
    The Rotherham NHS Foundation Trust
    Rotherham
    S60 2UD
  • Royal Bournemouth Hospital
    University Hospitals Dorset NHS Foundation Trust
    Poole
    BH15 2JB
  • The Royal Oldham Hospital
    The Pennine Acute Hospitals NHS Trust
    Manchester
    M8 5RB
  • Royal Stoke University Hospital
    University Hospitals of North Midlands NHS Trust
    Stoke-on-Trent
    ST4 6QG
  • Royal United Hospital Bath
    Royal United Hospitals Bath NHS Foundation Trust
    Bath
    BA1 3NG
  • Royal Victoria Hospital
    Belfast Health and Social Care Trust
    Belfast
    BT12 6BA
  • Salford Royal Hospital
    Salford Royal NHS Foundation Trust
    Manchester
    M6 8HD
  • Southmead Hospital
    North Bristol NHS Trust
    Bristol
    BS10 5NB
  • Sunderland Royal Hospital
    South Tyneside and Sunderland NHS Foundation Trust
    Sunderland
    SR4 7TP
  • Watford General Hospital
    West Hertfordshire Hospitals NHS Trust
    Watford
    WD18 0HB
  • Manchester Royal Infirmary
    Manchester University Hospitals NHS Foundation Trust 
    Manchester
    M13 9WL
  • York Hospital
    York and Scarborough Teaching Hospitals NHS Foundation Trust
    York
    YO31 8HE
  • Basingstoke and North Hampshire Hospital
    Hampshire Hospitals NHS Foundation Trust
    Basingstoke
    RG24 9NA
  • Ipswich Hospital
    East Suffolk and North Essex NHS Foundation Trust
    Colchester
    CO4 5JL
  • Golden Jubilee National Hospital
    National Waiting Time Centre Board
    Clydebank
    G81 4DY
  • University Hospital Coventry
    University Hospitals Coventry and Warwickshire NHS Trust
    Coventry
    CV2 2DX
  • Grange University Hospital
    Aneurin Bevan University Health Board
    Gwent
    NP18 3XQ
  • Royal Victoria Infirmary
    Newcastle upon Tyne Hospitals NHS Foundation Trust
    Newcastle upon Tyne
    NE1 4LP
  • Wythenshawe Hospital
    Manchester University NHS Foundation Trust
    Manchester
    M23 9LT
  • North Manchester General Hospital
    Manchester University NHS Foundation Trust
    Manchester
    M8 5RB
  • Belfast City Hospital
    Belfast Health and Social Care Trust
    Belfast
    BT9 7AB
  • Sandwell General Hospital
    Sandwell and West Birmingham Hospitals NHS Trust
    West Bromwich
    B71 4HJ
  • Queen Elizabeth Hospital
    Lewisham and Greenwich NHS Trust
    London
    SE18 4QH
  • Guy's Hospital
    Guy's and St Thomas' NHS Foundation Trust
    London
    SE1 9RT
  • Heartlands Hospital
    Bordesley Green East Bordesley Green
    Birmingham
    B9 5SS
  • Chesterfield Royal Hospital
    Chesterfield Road Calow
    Chesterfield
    S44 5BL
  • Torbay Hospital
    Newton Road
    Torquay
    TQ2 7AA
  • Warrington Hospital
    Lovely Lane
    Warrington
    WA5 1QG
  • Wrexham Maelor Hospital
    Croesnewydd Road Wrexham Technology Park
    Wrexham
    LL13 7TD
  • Royal Hampshire County Hospital
    Romsey Road
    Winchester
    SO22 5DG
  • University Hospital Monklands
    Monkscourt Ave
    Airdrie
    ML6 0JS
  • Glan Clywd Hospital
    Rhuddlan Rd Bodelwyddan
    Rhyl
    LL18 5UJ
  • West Suffolk Hospita
    Hardwick Ln
    Bury St Edmund
    IP33 2QZ
  • Yeovil District Hospital
    Orthopaedic Triage Service Higher Kingston
    Yeovil
    BA21 4AT
  • Hull Royal Infirmary
    Hull University Teaching Hospitals NHS Trust
    Hull
    HU3 2JZ

This SWAT will provide useful information for researchers to improve patient communication to increase the return of follow-up questionnaires for clinical studies in the future. The researchers do not anticipate any risks associated with being part of this study.

Dr Ashley Agus
+44 (0)28961 51447
Ashley.Agus@nictu.hscni.net


Dr Naomi Dickson
+44 (0)28961 51447
MARCH@nictu.hscni.net



More information about this study, what is involved and how to take part can be found on the study website.


The study is sponsored by Belfast Health and Social Care Trust and funded by Health Technology Assessment Programme.




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Read full details for Trial ID: ISRCTN16675252
Last updated 09 April 2025

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