The NHS national data opt-out applies in England only.
Those patients who opted out of their NHS patient information being used for research purposes were not contacted to take part in the study. For phase 2, we anticipate that the NHS national opt-out will also apply.
For those of you who participate in the study, if you subsequently choose to opt out of your NHS patient information being used for research purposes, please note that the NHS national data opt-out does not apply where you have consented to participate in the study and where you have chosen for us to link your health records to your survey data.