Caldwell Michael F, Van Rybroek Gregory J
Mendota Juvenile Treatment Center, 301 Troy Drive, Madison, WI 53704, USA.
Int J Law Psychiatry. 2005 Nov-Dec;28(6):622-36. doi: 10.1016/j.ijlp.2004.07.001. Epub 2005 Aug 19.
This study reports on the reduction in violent offending in a population of serious and violent juvenile offenders following an intensive institutional treatment program. The treatment group (N=101) is compared to a similar group that was assessed but not treated (N=147). All youth were sent to the program from a juvenile corrections institution where they had received the customary rehabilitation services. The results show a significant reduction in the prevalence of recidivism in the treated group after controlling for time at risk in the community and other covariates. The effects of non-random group assignment were reduced by including a propensity score analysis procedure in the outcome analysis. Untreated comparison youth appeared to be about twice as likely to commit violent offenses as were treated youth (44% vs. 23%). Similarly, treated youth had significantly lower hazard ratios for recidivism in the in the community than the comparison youth, even after accounting for the effects of non-random group assignment.
本研究报告了在一个针对严重暴力少年罪犯群体实施强化机构治疗项目后，暴力犯罪行为的减少情况。将治疗组（N = 101）与一个经过评估但未接受治疗的类似组（N = 147）进行比较。所有青少年均从少年教养机构被送往该项目，在那里他们已接受了常规的康复服务。结果显示，在控制了社区中的风险时间及其他协变量后，治疗组的再犯率显著降低。通过在结果分析中纳入倾向得分分析程序，减少了非随机分组的影响。未接受治疗的对照青少年实施暴力犯罪的可能性似乎是接受治疗青少年的两倍左右（44% 对 23%）。同样，即使在考虑了非随机分组的影响之后，治疗组青少年在社区中的再犯风险比仍显著低于对照青少年。
