An Intervention to Increase Detection of Developmental Delays in Special Supplemental Nutrition Program for Women, Infants, and Children

Low-income children are at risk for under-detection of developmental disabilities (DDs). Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) clinics see low-income children regularly in early childhood and could be an important source of referrals to developmental services. This was a site-randomized trial of an intervention to train WIC staff in early identification of DDs, using Center for Disease Control and Prevention's Learn the Signs Act Early (LTSAE) developmental monitoring materials. Seven county WIC agencies in Oregon enrolled: 4 intervention agencies and 3 control agencies. The intervention consisted of an on-site, half-day training regarding signs of developmental delays, use of LTSAE materials, and referral to Early Intervention and Early Childhood Special Education (EI/ECSE). Control sites received no training and continued their usual care and referral processes. Primary study outcome was number of children referred from WIC to EI/ECSE in control versus experimental counties as well as % of referrals evaluated, using data obtained from Oregon's EI/ECSE program. Data for 46 children referred to EI/ECSE were obtained. Overall, 3 of 4 intervention sites increased their referrals to EI/ECSE, and 0 of 3 control sites increased referrals. Total referrals in the intervention arm increased from 5 to 33 in the intervention arm, but decreased from 6 to 2 in the control arm. In the intervention arm, referrals increased for both boys and girls and for all ages. This brief intervention with WIC staff led to short-term increases in EI referrals and evaluations. Such interventions may hold promise for reducing disparities.