CLOCS-2 recruitment will open soon!
Patients diagnosed with certain cancers including:
Colorectal
Oesophageal
Stomach
Liver
Bladder
Uterine
Vulval
Ovarian
Endometrial
Pancreatic
often report experiencing vague symptoms that they treat with over-the-counter medication, to manage their symptoms before seeing a health care professional. Using information on what products participants purchase and how often could help identify these cancers earlier
The primary goal of this study is to investigate whether or not people have distinctive self-management behaviours prior to seeing their doctor with symptoms that are associated with the various forms of cancer mentioned above.
We will compare up to 6 years of shopping history of
1450 patients with cancer (cases)
and
1450 participants without cancer (controls)
using the information collected on the loyalty cards of the two UK based high street retailers:
- Boots
- Tesco
We would like you to complete and submit our secured and confidential
Informed study consent
Informed consent for access to your loyalty card data
Identity verification documents (proof of ID and address) to satisfy the retailers privacy policies
A questionnaire regarding your health (patients with a cancer diagnosis will have questions about their cancer diagnosis)
Note: you can complete the questionnaire in one go or you can click 'save and return' at the bottom of every page.
People living in the UK
18 years of age and older
diagnosed up to 2 years prior with any of the mentioned cancers (cases)
who have not been diagnosed with any of the cancers mentioned (controls)
have at least one loyalty card from Boots and/or Tesco.
Note: You don't have to be a frequent user or could be buying for everyone else in your household. Matching patients and healthy volunteers will account for similarities and differences.
Cancer Loyalty Card Study Participant Information Sheet
