CPMS ID: 58679 IRAS ID: 324742
Investigation of whether or not the everyday loyalty card use in high street retailers can help identify early signs of cancers. CLOCS-2 aims to compare purchasing patterns of participants with (cases) and without (controls) cancer diagnoses to develop a way to potentially help diagnose cancer earlier.
Updated 02/09/2024
Inclusion Criteria
18 years or older
Diagnosis of the cancer forms: colorectal, oesophageal, stomach, liver, bladder, uterine, vulval, ovarian, endometrial and pancreatic cancer within the past two years
They or their family member (living in the same household) having primary ownership of at least one of the participating high street retailer’s loyalty cards from Tesco or Boots
Exclusion Criteria
1. Under 18 years old
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