There is an article in the September, 2006 issue of the journal, Pediatrics, on a study of over 15,000 young adults in the United States who reported some sort of maltreatment as children and adolescents growing up. The percentage of young adults who report some sort of maltreatment is over 40%.
Having been left home alone as a child, indicating possible supervision neglect, was most prevalent (reported by 41.5% of respondents), followed by physical assault (28.4%), physical neglect (11.8%), and contact sexual abuse (4.5%).
Self-reported childhood maltreatment was common. The likelihood of maltreatment varied across many sociodemographic characteristics. Each type of maltreatment was associated with multiple adolescent health risks.