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Background: The number of sexual offences reported in Japan doubled between 1992 and 2002. This has prompted attention to assessment of risk of recidivism., Aims: To explore whether an actuarial assessment of risk widely used in the West can be meaningfully applied to Japanese men serving a prison sentence for sexual offences., Method: All sex offenders incarcerated in Kitakyushu Medical Prison in Fukuoka at any time in a period of one year (1 July 2002-30 June 2003) were identified. Demographic data, characteristics of offences and the Static-99 were rated from records., Results: Following a slightly modified application of coding rules, all items of the Static-99 were rateable. Nine offenders of 45 whose Static-99 score was over 6 were thus identified as high-risk offenders. The items distinguishing apparently high-risk men were history of institutionalization as a delinquent and mental retardation., Conclusions and Implications for Practice: The Static-99 may be a useful tool in assessing sex offenders in Japan. With apparently increasing recognition of sex crimes here, it seems timely to be developing a systematic approach to assessment. Further work is required to test its value in practice as a predictor of recidivism., (Copyright (c) 2006 John Wiley & Sons, Ltd.)

Background: There is little evidence regarding risk prediction for surgical site infection (SSI) after lower third molar (L3M) surgery. Methods: We conducted a nested case–control study to develop a multivariable logistic model for predicting the risk of SSI after L3M surgery. Data were obtained from Hokkaido University Hospital from April 2013 to March 2020. Multiple imputation was applied for the missing values. We conducted decision tree (DT) analysis to evaluate the combinations of factors affecting SSI risk. Results: We identified 648 patients. The final model retained the available distal space (Pell & Gregory II [p = 0.05], Pell & Gregory III [p < 0.01]), depth (Pell & Gregory B [p < 0.01], Pell & Gregory C [p < 0.01]), surgeon's experience (3–10 years [p = 0.25], <3 years [p < 0.01]), and simultaneous extraction of both L3M [p < 0.01]; the concordance‐statistic was 0.72. The DT analysis demonstrated that patients with Pell and Gregory B or C and simultaneous extraction of both L3M had the highest risk of SSI. Conclusions: We developed a model for predicting SSI after L3M surgery with adequate predictive metrics in a single center. This model will make the SSI risk prediction more accessible. [ABSTRACT FROM AUTHOR]