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Forensic Laboratory Evidence in Sexually Abused Children and Adolescents
Karen L. Young, MD;
Jerry G. Jones, MD;
Toss Worthington, RNP;
Pippa Simpson, PhD;
Patrick H. Casey, MD
Arch Pediatr Adolesc Med. 2006;160:585-588.
Objectives To determine if forensic laboratory evidence could be recovered from alleged sexual abuse victims more than 24 hours after the event and to determine if age or historical factors could be used to determine the need for forensic evidence collections.
Design Retrospective study of hospital records matched with forensic evidence reports from the Arkansas State Crime Laboratory, Little Rock.
Setting The emergency department at Arkansas Children's Hospital, Little Rock.
Participants Eighty children (aged <12 years) and adolescents (aged  12 years) who presented to the emergency department within 72 hours of an alleged event of sexual abuse or assault with genital contact.
Main Outcome Measures Cases positive for semen were correlated with age of the victim and postevent length of time to presentation to the emergency department.
Results Of the 80 subjects, 16 had positive findings for semen. All 16 subjects who tested positive for semen presented to the emergency department less than 24 hours after the alleged abuse or assault event (P<.001). Of the 16 subjects who tested positive, 13 (81%) were adolescents. None of the prepubertal children had semen recovered from any body site; semen was recovered only from clothing or linen in those 3 children.
Conclusions Forensic evidence collections from body sites in child and adolescent rape patients are unlikely to yield positive results for semen (1) more than 24 hours after the event and (2) when taken from prepubertal patients. Consideration should be given to amending guidelines regarding forensic evidence collections in child and adolescent sexual abuse or assault victims.
Author Affiliations: Department of Pediatrics, College of Medicine (Drs Young, Jones, Simpson, and Casey and Ms Worthington), Center for Children at Risk (Dr Jones and Ms Worthington), Biostatistics Section (Dr Simpson), and Center for Applied Research and Evaluation (Dr Casey), University of Arkansas for Medical Sciences, Little Rock.
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