1,198
Participants
Start Date
January 15, 2017
Primary Completion Date
June 30, 2018
Study Completion Date
September 30, 2019
Group A Reminder
Tone of reminder email (duty 14 days followed by duty 28 days for non-responders)
Group B Reminder
Tone of reminder email (encouragement 14 days followed by encouragement 28 days for non-responders)
Group C Reminder
Tone of reminder email (encouragement 14 days followed by duty for non-responders 28 days)
Group D Reminder
Tone of reminder email (duty 14 days followed by encouragement for non-responders 28 days)
Group E Reminder
Tone of reminder email (generic reminders 14 days followed by 28 days for non-responders)
Group F Reminder
Tone of reminder email (generic 14 days followed by duty for non-responders 28 days)
Group G Reminder
Tone of reminder email (generic 14 days followed by encouragement for non-responders 28 days)
Group H Reminder
Tone of reminder email ( duty14 days followed by generic for non-responders 28 days)
Group I Reminder
Tone of reminder email (encouragement 14 days followed by generic non-responders 28 days)
ThinkWell, Oxford
University of Oxford
OTHER
The BMJ
OTHER
Queen's University, Belfast
OTHER
ThinkWell
OTHER