Background: The incidence and prevalence of skin cancer is rising. A detection model could support the (screening) process of diagnosing non-melanoma skin cancer. Methods: A questionnaire was developed containing potential actinic keratosis (AK) and basal cell carcinoma (BCC) characteristics. Three nurses diagnosed 204 patients with a lesion suspicious of skin (pre)malignancy and filled in the questionnaire. Logistic regression analyses generated prediction models for AK and BCC. Results: A prediction model containing nine characteristics correctly predicted the presence or absence of AK in 83.2% of the cases. BCC was predicted correctly in 91.4% of the cases by a model containing eight characteristics. The nurses correctly diagnosed AK in 88.3% and BCC in 90.9% of the cases. Conclusions: Detection or screening models for AK and BCC could be made with a limited number of variables. Nurses also diagnosed skin lesions correctly in a high percentage of cases. Further research is necessary to investigate the robustness of these findings, whether the percentage of correct diagnoses can be improved and how best to implement model-based prediction in the diagnostic process.

Detection, Nurses, Skin cancer
dx.doi.org/10.1159/000369790, hdl.handle.net/1765/83374
Dermatology: international journal for clinical and investigative dermatology
Department of Dermatology

van der Geer, S, Kleingeld, P.A.M, Snijders, C.C.P, Rinkens, F.J.C.H, Jansen, G.A.E, Neumann, H.A.M, & Krekels, G.A.M. (2015). Development of a non-melanoma skin cancer detection model. Dermatology: international journal for clinical and investigative dermatology, 230(2), 161–169. doi:10.1159/000369790