Inclusion/exclusion criteria
| Criteria | Screened by general practitioner | Screened online |
| Inclusions | ||
| Aged at least 18 years | x | x |
| Had a diagnosis of colorectal, breast or prostate cancer | x | x |
| Finished primary cancer treatment within prior ten years/diagnosis in prior ten years, unless on active surveillance for prostate cancer | x | |
| Have internet access | x | |
| Impaired quality of life (≤85 on the EORTC) | x | |
| Exclusions | ||
| Have had more than one type of cancer in the preceding 5 years | x | x |
| Has metastatic cancer | x | |
| Has sarcoma or lymphoma of the breast | x | |
| Receiving cancer treatment or had recent treatment (in last month) | x | x |
| Expecting to start cancer treatment during the study period | x | |
| Severe mental health problems and/or major uncontrolled depression/schizophrenia or dementia | x | |
| Lives in the same household as another participant | x |
Primary treatments can include bone marrow and stem cell transplants, breast-conserving surgery, chemotherapy, colostomy/partial colostomy, immunotherapy, lumpectomy, mastectomy, orchidectomy, radical prostatectomy, radiotherapy, targeted therapy, trans-urethral resection.
EORTC, European Organization for Research and Treatment of Cancer.