Abstracts of the 2023 Annual Conference of the Canadian Paediatric Society e10 Paediatrics & Child Health, Vol. 28, No. S1 September 2023 suspicion or confirmed genetic syndrome, or an identified developmental concern by primary care physician screening. Abstract citation ID: pxad055.021 21 CROSS-SECTORAL CARE FOR TRANSITIONAL AGED YOUTH (TAY) WITH AUTISM SPECTRUM DISORDERS AND INTELLECTUAL DISABILITIES (ASD/IDD) Elizabeth Young, Megan Henze, Shanthiya Nallathamby, Thivia Jegathesan; Laurie Green, Karen Weyman, Barry Isaacs, Alvin Loh, Karen Milligan BACKGROUND: The Transition Clinic for Youth and Young Adults (TAY clinic) with ASD/IDD is a unique partnership between the Developmental Sector and Health care sector. Surrey Place Centre, St. Michaels Family Health Teams and Developmental Paediatrics work with families of adolescents and young adults ages 14-22 to help tran- sition from paediatrics-based healthcare and developmental services to adult sectors using a structured approach to transition. This clinic was a pilot project over the past 5 years, and we are using a mix-methods study to evaluate the implementation of the clinic and its impact on the lives of TAY with IDD and their caregivers. OBJECTIVES: To describe patient and caregiver characteristics, usage of clinic, transition goals stated and achieved, and level of support needed. DESIGN/METHODS: Quantitative data was collected using standard- ized forms including demographics, transition planning goals, and dates of applications to critical services like Developmental Service Ontario and Ontario Disability Support Program. The frequency, intensity and duration of transition planning support provided in the clinic was doc- umented, as well as involvement of crisis services, child protection ser- vices, networks of specialized care, and hospital admissions. RESULTS: To date, 94 families have been supported through this clinic, with notable differences in the intensity and type of services required. Families were evenly distributed across three levels of transi- tional support need: (1) required consultation only; (2) required short- term intervention and follow up from the team with future crisis planning; and (3) families with extreme complexity, disconnected from the devel- opmental sector and requiring intensive support and, at times, crisis care. In this 3rd group, 30% were regular emergency and crisis service users because of significant risk of harm or death to client or caregiver asso- ciated with physical or mental health concerns, and 15% were at risk of homelessness. Barriers to social determinants of health (e.g., housing, food security, social support) and inequities (based on race, immigration status, employment, English language proficiency) were present in all cases. Across all 3 groups, trajectories within the current systems of care were often apparent years before their transition. CONCLUSION: Cross-sector models of care are feasible for TAY with IDD. This model of care identified different levels of need for TAY with IDD. Barriers to transition support are rooted in inequities and are often present years prior to transition. Paediatricians can help with earlier identification of families who require and deserve more comprehensive support. Abstract citation ID: pxad055.022 22 FAMILIES’ EXPERIENCES WITH AUTISM SERVICE NAVIGA- TION AND MOBILE APPLICATION-BASED SUPPORT Elizabeth Young, Thivia Jegathesan, Shanthiya Nallathamby, Rachel Wagner, Ripudaman Minhas, Melanie Penner BACKGROUND: Navigating services following an autism spectrum disorder (ASD) diagnosis is a challenging and lengthy process. Families of children with ASD increasingly experience difficulty locating and accessing services, leading to the inaccessibility of care. These difficulties were further exacerbated by COVID-19 and little is known about fami- lies' experience navigating services during the pandemic. Given the com- plexities of accessing publicly funded developmental services and the lack of a comprehensive platform to navigate available services, prior to the pandemic our research team developed a mobile application, My Autism Passport (MAP), to assist families in identifying publicly available ASD services. Our goal was to determine whether a mobile application would provide families with greater self-efficacy during these challenging times. OBJECTIVES: The primary objective of our study was to determine the impact of MAP on caregiver self-efficacy. DESIGN/METHODS: A randomized controlled trial of 34 caregiv- ers of children under 6 years of age who were given a new diagnosis of ASD in the last year were recruited into the study. 17 were randomized to receive MAP. Access to ASD services and parent self-efficacy scores were collected via questionnaires at baseline and then at 6 months from recruitment in both groups. Self-efficacy was measured using the Parent Empowerment and Self-Efficacy Measurement (PEEM). RESULTS: Our study consisted of an ethnically diverse group of partic- ipants with varying socioeconomic levels. At baseline, participants indi- cated an overall mean PEEM score of 131.8 (±28.2) in the control arm, and 138.5 (±23.3) in the App arm at the time of diagnosis (p-value 0.6149). At 6 months following ASD diagnosis, the overall score was 123.2 (±35.7) in the control arm, and 137.3 (±33.3) in the App arm (p-value 0.4413). There was a trend towards decreasing feelings of self-efficacy in the control group compared to those with the App who had a stable self-efficacy score. CONCLUSION: Our study indicates that the use of a mobile app to assist service navigation may be helpful for families in self-naviga- tion for autism services. Data collection and analysis are ongoing for one-year post-diagnosis. Abstract citation ID: pxad055.023 23 ASSOCIATION BETWEEN AUTISM SPECTRUM DISORDER AND PARENTAL IMMIGRATION AMONG A COHORT OF PRESCHOOL CHILDREN IN MANITOBA Ryan Phung, Jessy Burns, Mara Fridell, Ana Hanlon-Dearman, Stefanie Narvey, M. Florencia Ricci BACKGROUND: Recent data indicate that rates of autism spectrum disorder (ASD) are increasing and therefore, studies exploring risk fac- tors for ASD that can further support early diagnosis and intervention are needed. A link between immigration and autism has been made by several international studies, but despite high rates of immigration, a Canadian study examining this association has not been conducted. OBJECTIVES: To determine the proportion of children diagnosed with ASD at Manitoba’s primary autism referral site (the only publicly funded site for ASD evaluation of children <6 years of age) that were born to immigrant parents, and compare it with the known proportion of immigrants in Manitoba. Also, to compare demographic and clini- cal characteristics of children whose parents are immigrants with those whose parents were born in Canada. DESIGN/METHODS: We conducted a retrospective chart review of >2000 electronic records that identified all children <6 years diagnosed with ASD at the referral site between May 2016 and September 2021. Data on parental immigration, demographics, diagnostic evaluation, and medical history was collected. Descriptive statistics were used to compare the relative proportion of children with ASD from immigrant parents Downloaded from https://academic.oup.com/pch/article/28/Supplement_1/e10/7281446 by guest on 25 September 2023