LAUSR

OBJECTIVE The adult INTERMED is used to determine case complexity and psychosocial needs. We developed and validated a pediatric version of the INTERMED for children and adolescents with inflammatory bowel disease (IBD) and assessed its utility in predicting healthcare utilization. METHODS We performed a cross-sectional study of children (aged 8-17 y) with IBD (n = 148) and their parents, seen in a hospital-based clinic. Subjects completed semi-structured interviews that were scored on the 34 pIBD-INTERMED items. To assess inter-rater reliability, 40 interviews were videotaped and scored by a second assessor. Convergent and predictive validity were assessed by examining the relation of the pIBD-INTERMED to standardized measures of psychological, social, and family functioning, disease activity, and healthcare utilization. RESULTS Correlational analyses supported the validity of all five pIBD-INTERMED domains with very good inter-rater reliability (median r = 0.87) and internal consistency (α = 0.91) for the total complexity index. Ratings of 2-3 on the pIBD-INTERMED "mental health/cognitive threat" item were associated with greater odds of behavior and social problems (CBCL-Internalizing scale OR = 7.27, 95% CI 2.17-24.36); CBCL-Externalizing scale OR = 24.79, 95% CI 5.00-122.84), depression (Children's Depression Inventory OR = 8.52, 95% CI 1.70-43.02) and anxiety (Multidimensional Anxiety for Children OR = 11.57, 95% CI 3.00-45.37). The pIBD-INTERMED complexity index added significantly to the prediction of healthcare utilization, beyond the contribution of disease severity. CONCLUSIONS The pIBD-INTERMED is a reliable and valid tool for identifying psychosocial risks and needs of children with IBD. It can be used to guide planning of individualized care and enhance interdisciplinary pediatric IBD care.