The effect of direct payment or a lottery on questionnaire response rates: a randomised controlled trial

ISRCTN ISRCTN45481467
DOI https://doi.org/10.1186/ISRCTN45481467
Secondary identifying numbers N/A
Submission date
23/01/2004
Registration date
23/01/2004
Last edited
23/05/2008
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Other
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Not provided at time of registration

Contact information

Prof Bonnie Sibbald
Scientific

National primary Care Research and Development Centre
5th Floor
Williamson Building
University of Manchester
Manchester
M13 9PL
United Kingdom

Phone +44 (0)161 275 7604
Email bonnie.sibbald@man.ac.uk

Study information

Study designRandomised controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Not specified
Study typeNot Specified
Scientific title
Study objectivesNot provided at time of registration
Ethics approval(s)Not provided at time of registration
Health condition(s) or problem(s) studiedQuestionnaire response rates
Intervention1. Direct payment for questionnaire completion
2. Entry into lottery for questionnaire completion
Intervention typeOther
Primary outcome measureNot provided at time of registration
Secondary outcome measuresNot provided at time of registration
Overall study start date01/09/1997
Completion date30/11/1997

Eligibility

Participant type(s)Patient
Age groupNot Specified
SexFemale
Target number of participantsAdded as of 23/05/2008: 1000
Key inclusion criteriaWomen aged 40 to 65
Key exclusion criteriaNot provided at time of registration
Date of first enrolment01/09/1997
Date of final enrolment30/11/1997

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centre

National primary Care Research and Development Centre
Manchester
M13 9PL
United Kingdom

Sponsor information

NHS R&D Regional Programme Register - Department of Health (UK)
Government

The Department of Health
Richmond House
79 Whitehall
London
SW1A 2NL
United Kingdom

Phone +44 (0)20 7307 2622
Email dhmail@doh.gsi.org.uk
Website http://www.doh.gov.uk

Funders

Funder type

Government

NHS Executive North West (UK)

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article Results 01/01/2000 Yes No