Table 3

CCDTs used in studies

NameCancer typeFormatUse and development
Risk Assessment Tool (RAT)Lung, colorectalDesk basedQuantifies risk of cancer in symptomatic primary care patients.
Consists of risk score for high-risk symptoms in isolation, for repeat presentation of the same symptom and in combination with one other symptom.
Positive predictive Values for symptoms of cancer, developed through series of population-based case and control studies in primary care setting.
Electronic RATLung (non-smokers), lung (smokers), colorectalElectronicElectronic version of clinical decision Risk Assessment Tools described above.
QCancerLung, colorectal, gastro-oesophageal, pancreatic, blood, renal, prostate and various othersElectronicQCancer algorithms can be used to calculate the percentage probability of having an undiagnosed cancer.
Developed using QResearch database in a series of prospective cohort studies, it incorporates a range of risk factors.
Electronic clinical decision support 7 Point Check ListMelanomaElectronicElectronic Clinical Decision Support for assessment of pigmented lesions.
Integrated into EMIS clinical system.
A validated diagnostic checklist of 7 weighted features of a pigmented lesion.
A score of 3 or more is suspicious of a diagnosis of melanoma.
  • CCDT, Clinical Cancer Decision Tool.