the same crimes. According to Angela Davis, in many situations, white women are put in mental institutions, whereas black women are sent to prison for the same crime. In 2013, there were 628,900 adult males in local jails in the United States, and 1,463,500 adult males in state and federal prisons. In a study of sentencing in the United States in 1984, David B. Mustard found that males received 12 percent longer prison terms than females after "controlling for the offense level, criminal history, district, and offense type," and noted that "females receive even shorter sentences relative to men than whites relative to blacks." A later study by Sonja B. Starr found sentences for men to be up to 60% higher when controlling for more variables. Several explanations for this disparity have been offered, including that women have more to lose from incarceration, and that men are the targets of discrimination in sentencing. Youth Through the juvenile courts and the adult criminal justice system, the United States incarcerates more of its youth than any other country in the world, a reflection of the larger trends in incarceration practices in the United States. This has been a source of controversy for a number of reasons, including the overcrowding and violence in youth detention facilities, the prosecution of youths as adults and the long term consequences of incarceration on the individual's chances for success in adulthood. In 2014, the United Nations Human Rights Committee criticized the United States for about ten judicial abuses, including the mistreatment of juvenile inmates. A UN report published in 2015 criticized the US for being the only nation in the world to sentence juveniles to life imprisonment without parole. According to federal data from 2011, around 40% of the nation's juvenile inmates are housed in private facilities. The incarceration of youths has been linked to the effects of family and neighborhood influences. One study found that the "behaviors of family members and neighborhood peers appear to substantially affect the behavior and outcomes of disadvantaged youths". Aged The percentage of prisoners in federal and state prisons aged 55 and older increased by 33% from 2000 to 2005 while the prison population grew by 8%. The Southern Legislative Conference found that in 16 southern states, the elderly prisoner population increased on average by 145% between 1997 and 2007. The growth in the elderly population brought along higher health care