Telephone Support by Trained Nurses
A key feature is to provide telephone support, this provides:
· Increased participation in surveys by wider population and reduction in recruitment bias – can complete the whole questionnaire by telephone if desired
· Increase in quality of patient responses as they can phone the helpline and ask queries about any of the questions before/during completion
· Maintain motivation of participants as the nurses can contact if they have missed data entry point
· Clarify data entry if answers don’t make sense or discover something of concern
