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11 February 2012 
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The effect of a personalised letter on response rates to a postal questionnaire: a randomised controlled trial
ISRCTN ISRCTN45665423
ClinicalTrials.gov identifier
Public title The effect of a personalised letter on response rates to a postal questionnaire: a randomised controlled trial
Scientific title
Acronym N/A
Serial number at source N0311114507
Study hypothesis Does a personalised addressed letter compared with a standard letter increase response rate to a postal questionnaire on service quality sent to people referred to an exercise referral scheme?
Lay summary
Ethics approval Approval for the study was received in advance from the local research ethics committee and the research governance committee.
Study design Randomised controlled trial
Countries of recruitment United Kingdom
Disease/condition/study domain Exercise referral
Participants - inclusion criteria People living in the community of Bolton who had been referred to the exercise referral scheme over a three year period.
Participants - exclusion criteria Not provided at time of registration
Anticipated start date 01/06/2002
Anticipated end date 30/06/2003
Status of trial Completed
Patient information material
Target number of participants 627
Interventions A two-group randomised trial of a personalised letter versus a standard letter.
Primary outcome measure(s) The number of completed questionnaires returned after completing all methods of follow-up.
Secondary outcome measure(s) Not provided at time of registration
Sources of funding Bolton Primary Care Trust (UK)
Trial website
Publications Results in http://www.ncbi.nlm.nih.gov/pubmed/15537429
Contact name Dr  R A  Harrison
  Address Bolton Primary Care Trust
St Peter's House
Silverwell Street
  City/town Bolton
  Zip/Postcode BL1 1PP
  Country United Kingdom
  Tel +44 (0)1204 907728
  Fax +44 (0)1204 377008
  Email Roger.Harrison@bolton.nhs.uk
Sponsor Record Provided by the NHSTCT Register - 2004 Update - Department of Health (UK)
  Address The Department of Health,
Richmond House,
79 Whitehall
  City/town London
  Zip/Postcode SW1A 2NL
  Country United Kingdom
  Tel +44 (0)20 7307 2622
  Email dhmail@doh.gsi.org.uk
  Sponsor website: http://www.dh.gov.uk/Home/fs/en
Date applied 30/09/2004
Last edited 22/02/2008
Date ISRCTN assigned 30/09/2004
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