Our coordinating site (The Walton Centre, Liverpool) send a batch of blank questionnaire packs to participating study sites

Site sends a batch of completed questionnaire packs back to co-ordinating site where date of delivery is recorded

Anonymous Data is entered into a secure password protected database by a trained member of the study team. Personal identifiers are not entered and are stored separately

The site anonymise questionnaire pack by adding a unique Study ID number and date of dispatch​

Site receives pack from participant and completes a complete check for missing or erroneous data

Every 10th questionnaire pack entered is checked by an additional study team member. Where any errors are recorded, data is corrected. 

Sites send questionnaire pack to participant to complete at home. A prepaid envelope is included for the participant to return the completed pack

Participant receives questionnaire pack and completes it in the comfort of their own home. They record the completion date and return to their study site in the pre-paid envelope

Questionnaire pack is archived into a secure archiving facility.