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The identification of high risk populations is the key to implement effective risk\u2010adjusted screening. Good statistical approaches for risk prediction do not exist. The family's colorectal cancer history is used for identification of high risk families and usually assessed by a questionnaire. This paper introduces a prediction algorithm to designate a family for colorectal cancer risk and discusses its statistical properties. The new algorithm uses Bayesian reasoning and a detailed family history illustrated by a pedigree and a Lexis diagram. The algorithm is able to integrate different hereditary mechanisms that define complex latent class or random factor structures. They are generic and do not reflect specific genetic models. This is comparable to strategies in complex segregation analysis. Furthermore, the algorithm can integrate different statistical penetrance models for right censored event data. Computational challenges related to the handling of the likelihood are discussed. Simulation studies assess the predictive quality of the new algorithm in terms of ROC curves and corresponding AUCs. The algorithm is applied to data of a recent study on familial colorectal cancer risk. Its predictive performance is compared to that of a questionnaire currently used in screening for familial colorectal cancer. The results of the proposed algorithm are robust against different inheritance models. Using the simplest hereditary mechanism, the simulation study provides evidence that the algorithm improves detection of families with high cancer risk in comparison to the currently used questionnaire. The applicability of the algorithm goes beyond the field of colorectal cancer.<\/jats:p>","DOI":"10.1002\/bimj.201600264","type":"journal-article","created":{"date-parts":[[2017,11,8]],"date-time":"2017-11-08T09:58:49Z","timestamp":1510135129000},"page":"115-127","source":"Crossref","is-referenced-by-count":5,"title":["A Bayesian scoring rule on clustered event data for familial risk assessment \u2013 An example from colorectal cancer screening"],"prefix":"10.1002","volume":"60","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6826-4497","authenticated-orcid":false,"given":"Anna K.","family":"Rieger","sequence":"first","affiliation":[{"name":"Institute for Medical Information Sciences Biometry and Epidemiology (IBE) Ludwig\u2010Maximilians\u2010Universit\u00e4t M\u00fcnchen M\u00fcnchen Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ulrich R.","family":"Mansmann","sequence":"additional","affiliation":[{"name":"Institute for Medical Information Sciences Biometry and Epidemiology (IBE) Ludwig\u2010Maximilians\u2010Universit\u00e4t M\u00fcnchen M\u00fcnchen Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2017,11,8]]},"reference":[{"key":"e_1_2_8_2_1","unstructured":"Boyle P.&Levin B.(Eds.) 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