Individuals who sexually offended against both children and adults might be particularly dangerous. However, studies on this group are rare due to methodological difficulties. We investigated adverse childhood experiences, criminological variables, and other characteristics as well as recidivism in individuals who sexually offended against mixed-aged victims (ISOMAVs) compared to individuals who exclusively offended against adults (ISOAs) or children (ISOCs). Compared to previous studies, we applied more stringent classification criteria by including only individuals with at least two past sexual offenses. Analyses revealed that ISOMAVs more often had an extensive history of sexual offending. In addition, they were more likely than ISOAs to assault males, and more likely than ISOCs to assault strangers. Violent reoffending was more common in ISOMAVs compared to ISOCs, but ISOMAVs showed no more sexual recidivism. Other findings, limitations, and implications for research and practice are discussed.

对儿童和成人都有性侵犯的个人可能特别危险。但是，由于方法上的困难，对该组的研究很少。我们调查了对混合年龄受害者（ISOMAV）进行性侵犯的个人与仅对成年人（ISOA）或对儿童（ISOCs）犯罪的个人相比，不良的童年经历，犯罪学变量和其他特征以及累犯。与以前的研究相比，我们通过仅包括过去至少有两次性犯罪的个人，采用了更为严格的分类标准。分析表明，ISOMAV经常有广泛的性犯罪史。此外，他们比ISOA更可能袭击男性，比ISOC更可能袭击陌生人。与ISOC相比，ISOMAV中更常见的是暴力侵害，但ISOMAV并没有表现出更多的性累犯。讨论了其他发现，局限性以及对研究和实践的意义。