Summary
Collaboration and collective impact are growing in popularity within the field of public health, but there is a lack of research on collaboration change over time and the impacts of changes in collaboration on screening and referral rates for children's mental and behavioral health needs. This study is a secondary analysis of evaluation data from three sites (New Haven, CT [ECPL], Gallatin and Park Counties, MT [MTPL] and Adams County, CO [COPL]) involved in cohort six of Project LAUNCH (Linking Actions for Unmet Needs in Children's Health). We examined collaboration change over time and the impact of collaboration on numbers of children screened for mental and behavioral health needs and referral rates for children's mental health services. Overall collaboration increased significantly over time (beta = 4.20, p=0.002). Collaboration increased significantly over time at MTPL (beta = 5.89, p = 0.022), there was a trend- level increase in collaboration over time at ECPL (beta = 4.40, p = 0.087) and there was no change in collaboration over time at COPL (beta = 0.15, p = 0.935). For ECPL, there was no association between collaboration and the numbers of children screened for mental health needs (beta = 0.85, p = 0.291). Increases in collaboration were marginally associated with decreases in referral rates for child mental health services at ECPL (beta = -0.08, p = 0.06). Collaboration increased significantly over time but had no impact on the number of children screened and a marginal, negative impact on referral rates for mental health services. Community coalitions, policy makers, health care providers, and funding sources should invest resources into improving collaboration between community partners.