Factors affecting the diagnosis and prediction of PTSD symptomatology in children and adolescents.
OBJECTIVE
In a cohort that spanned all of childhood and suffered equivalent types of traumas, the authors examined diagnostic validity and risk factors for posttraumatic stress disorder (PTSD). For older children, parent-child agreement was investigated.


METHODS
Sixty-two children ages 0-18 years who were hospitalized with injuries were assessed 2 months later for PTSD. Mothers were interviewed, and concurrent interviews were conducted with 24 adolescents.


RESULTS
Children did not attain the DSM-IV threshold of three criterion C items until age 7. The 0-6-year-old group had significantly fewer criterion C symptoms (mean=0.43) than the 12-18-year-olds (mean=1.17). The impact of altering thresholds for criteria C and D was examined. Older children reported symptoms meeting criterion B significantly more often (79.2%) than parents (45.8%). Combined parent-child reports yielded significantly more symptoms and higher rates for criteria B, C, and D (almost a twofold increase) and for the overall diagnosis (37.5%) than parent report alone (4.2%). This 8.9-fold increase in diagnosis from combined reports suggests that the diagnostic rates for children who cannot make self-reports may greatly underestimate the true numbers. The interaction between pretrauma externalizing behavior and witnessing a threat to a caregiver had a significant effect on the total number of PTSD symptoms.


CONCLUSIONS
These findings provide additional support for lowering the requirement of three criterion C symptoms for preschool children and raise questions about the appropriateness of this threshold for prepubertal children. The validity of studies that do not assess symptoms with combined parent and child reports is limited.
Department of Psychiatry and Neurology, Tulane University Health Sciences Center, TB52, 1440 Canal St., New Orleans, LA 70112, USA. mscheer@tulane.edu
Michael S
MS
Scheeringa
Mary Jo
MJ
Wright
John P
JP
Hunt
Charles H
CH
Zeanah
D000293:Adolescent; D000367:Age Factors; D017028:Caregivers / Q000523:psychology; D002648:Child; D002653:Child Behavior Disorders / Q000453:epidemiology / Q000523:psychology; D015331:Cohort Studies; D015897:Comorbidity; D039721:Diagnostic and Statistical Manual of Mental Disorders; D006304:Health Status; D006760:Hospitalization; D006801:Humans; D008016:Life Change Events; D010290:Parents / Q000523:psychology; D011569:Psychiatric Status Rating Scales / Q000706:statistics & numerical data; D011594:Psychometrics; D015203:Reproducibility of Results; D012107:Research Design; D012307:Risk Factors; D013313:Stress Disorders, Post-Traumatic / Q000175:diagnosis* / Q000453:epidemiology / Q000523:psychology; D013315:Stress, Psychological / Q000453:epidemiology / Q000523:psychology; D011795:Surveys and Questionnaires; D014947:Wounds and Injuries / Q000523:psychology