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 |
| Protocol serial number | N/A |
| Sponsor | NHS R&D Regional Programme Register - Department of Health (UK) |
| Funder | NHS Executive North West (UK) |
- 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
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 |
|---|---|
| bonnie.sibbald@man.ac.uk |
Study information
| Primary study design | Interventional |
|---|---|
| Study design | Randomised controlled trial |
| Secondary study design | Randomised controlled trial |
| Scientific title | |
| Study objectives | Not provided at time of registration |
| Ethics approval(s) | Not provided at time of registration |
| Health condition(s) or problem(s) studied | Questionnaire response rates |
| Intervention | 1. Direct payment for questionnaire completion 2. Entry into lottery for questionnaire completion |
| Intervention type | Other |
| Primary outcome measure(s) |
Not provided at time of registration |
| Key secondary outcome measure(s) |
Not provided at time of registration |
| Completion date | 30/11/1997 |
Eligibility
| Participant type(s) | Patient |
|---|---|
| Age group | Not Specified |
| Sex | Female |
| Target sample size at registration | 1000 |
| Key inclusion criteria | Women aged 40 to 65 |
| Key exclusion criteria | Not provided at time of registration |
| Date of first enrolment | 01/09/1997 |
| Date of final enrolment | 30/11/1997 |
Locations
Countries of recruitment
- United Kingdom
- England
Study participating centre
National primary Care Research and Development Centre
Manchester
M13 9PL
United Kingdom
M13 9PL
United Kingdom
Results and Publications
| Individual participant data (IPD) Intention to share | No |
|---|---|
| IPD sharing plan summary | Not 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 |
