Study to Develop a Prediction Model to Understand the Effect of Low-dose Aspirin on Cancer That Develops in the Colon and/or the Rectum, Diseases That Affects the Heart or Blood Vessels and Safety Outcomes in European Countries. The Study is Also Called PEACOS Model EU

Observational Study Model is selected as "Other" - Reason: Individual-level state transition model simulating the number of events of CRC, CVD, safety events and deaths in hypothetical cohorts of 1 million adults aged 50-59 years and 1 million adults aged 60-69 years followed for 20 years or till death, whichever comes first. The hypothetical cohorts are reflective of a population eligible for taking aspirin for primary or secondary CVD prevention. Time Perspective is also selected as "Other" \- Reason: Individual-level state transition model built mimicking the UK population using data published in scientific international peer-reviewed journals or published data from government agencies. In a second phase, the model results will be extrapolated to other EU countries, modifying the model parameters to reflect the other EU countries epidemiology.