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There is little evidence on optimizing the effectiveness and implementation of evidence-based early childhood development (ECD) interventions when task-shifted to frontline workers. In this Methods Forum paper, we describe our adaptation of the International Guide for Monitoring Child Development (GMCD) for task-shifting to frontline workers in Guatemala and India. In 2021-2022, implementers, trainers, frontline workers, caregivers, and international GMCD experts collaborated to adapt the GMCD for a task shifted implementation by frontline workers. We used an eight-step co-creating process: assembling a multidisciplinary team, training on the existing package, working groups to begin modifications, revision of draft modifications, tailoring of visual materials and language, train-the-trainers activities, pilot frontline worker trainings, final review and feedback. Preliminary effectiveness of adaptations was evaluated through narrative notes and group-based qualitative feedback following pilot trainings with 16 frontline workers in India and 6 in Guatemala. Final adaptations included: refining training techniques to match skill levels and learning styles of frontline workers; tailoring all visual materials to local languages and contexts; design of job aids for providing developmental support messages; modification of referral and triage processes for children in need of enhanced support and speciality referral; and creation of post-training support procedures. Feedback from pilot trainings included: (1) group consensus that training improved ECD skills and knowledge across multiple domains; and (2) feedback on ongoing needed adjustments to pacing, use of video-based vs. role-playing materials, and time allocated to small group work. We use the Framework for Reporting Adaptations and Modifications to Evidence-based Implementation Strategies (FRAME-IS) framework to document our adaptations. The co-creating approach we use, as well as systematic documentation of adaptation decisions will be of use to other community-based early childhood interventions and implementation strategies.

Main findings: The International Guide for Monitoring Child Development, an early childhood development support and monitoring tool, was successfully adapted for use by frontline workers in rural India and Guatemala.Added knowledge: Our Methods Forum paper uses a detailed framework to document the collaborative, co-creating process used and the adaptive decisions taken.Global health impact for policy and action: Evidence on how best to adapt and optimize early childhood interventions for frontline workers will be useful or scaling up support for children globally.

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Introducción. El abordaje del desarrollo en la primera infancia (DPI) y las dificultades del desarrollo (DD) en los países de ingresos bajos o medios (PIBM) requiere de programas aplicables y sostenibles. Se evaluó el programa de capacitación para las unidades de pediatría del desarrollo (UPD) en los centros de referencia tras siete años. Población y métodos. Diseño transversal con métodos cualicuantitativos para evaluar los servicios, la capacitación, la investigación y la promoción de las UPD. Resultados. Se mantuvieron los servicios clínicos, la capacitación, investigación y promoción. En total, 23710 niños fueron derivados. La motivación y resistencia del personal, el respaldo de los administradores y la satisfacción del paciente facilitaron el programa, aunque la invisibilidad dentro del sistema de salud fue un obstáculo. Conclusiones. En Turquía, y posiblemente otros PIBM, el programa de capacitación para las UPD es aplicable y sostenible si se abordan los obstáculos del sistema de salud.

Introduction. Addressing early childhood development (ECD) and developmental difficulties (DDs) in low and middle-income countries (LMICs) requires applicable and sustainable programs. Seven years after its implementation in 2010, we evaluated the Developmental Pediatrics Unit (DPU) Training Program in pediatric referral centers in Turkey. Population and methods. We applied crosssectional design and quantitative/qualitative methods to assess services, training, research and advocacy of the DPUs. Results. Five of six established DPUs sustained clinical services, training, research, and advocacy. A total of 23,710 children (9085 new cases in 2017) had been referred mainly for perinatal risks and chronic illness, all centers contributed with similar proportions of children. Staff motivation and endurance, hospital administrator support, and client satisfaction facilitated the program; whereas invisibility within the performance based healthcare system was a barrier. Conclusions. In Turkey and possibly other LMICs, the DPU Training Program is applicable and sustainable if health system barriers are addressed

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INTRODUCTION: Addressing early childhood development (ECD) and developmental difficulties (DDs) in low and middle-income countries (LMICs) requires applicable and sustainable programs. Seven years after its implementation in 2010, we evaluated the Developmental Pediatrics Unit (DPU) Training Program in pediatric referral centers in Turkey. POPULATION AND METHODS: We applied crosssectional design and quantitative/qualitative methods to assess services, training, research and advocacy of the DPUs. RESULTS: Five of six established DPUs sustained clinical services, training, research, and advocacy. A total of 23,710 children (9085 new cases in 2017) had been referred mainly for perinatal risks and chronic illness, all centers contributed with similar proportions of children. Staff motivation and endurance, hospital administrator support, and client satisfaction facilitated the program; whereas invisibility within the performance based healthcare system was a barrier. CONCLUSIONS: In Turkey and possibly other LMICs, the DPU Training Program is applicable and sustainable if health system barriers are addressed.

Introducción. El abordaje del desarrollo en la primera infancia (DPI) y las dificultades del desarrollo (DD) en los países de ingresos bajos o medios (PIBM) requiere de programas aplicables y sostenibles. Se evaluó el programa de capacitación para las unidades de pediatría del desarrollo (UPD) en los centros de referencia tras siete años. Población y métodos. Diseño transversal con métodos cualicuantitativos para evaluar los servicios, la capacitación, la investigación y la promoción de las UPD. Resultados. Se mantuvieron los servicios clínicos, la capacitación, investigación y promoción. En total, 23 710niños fueron derivados. La motivación y resistencia del personal, el respaldo de los administradores y la satisfacción del paciente facilitaron el programa, aunque la invisibilidad dentro del sistema de salud fue un obstáculo. Conclusiones. En Turquía, y posiblemente otros PIBM, el programa de capacitación para las UPD es aplicable y sostenible si se abordan los obstáculos del sistema de salud.

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AIM: It is of critical importance to have internationally constructed tools to address early childhood development. The aim of this second phase of a two-phase study was to examine the sensitivity and specificity of the Guide for Monitoring Child Development (GMCD) in identifying developmental delay in four diverse countries. METHODS: The first phase of this 2011-2015 back-to-back study included 4949 children up to 42 months of age from primary healthcare centres in Argentina, India, South Africa and Turkey. Distribution curves were generated to show the ages when the children attained GMCD milestones and those that could be used across sexes and countries were placed in age ranges corresponding to the 85th and 97th percentile point estimates. Phase two examined a separately recruited sample of children in those countries to determine sensitivity and specificity of the GMCD. RESULTS: The validation phase of the 85 milestones in the GMCD identified delayed development in 30% of the 1731 children in the four countries. The sensitivity and specificity ranged from 0.71-0.94 and 0.69-0.82, respectively, for the total sample and the different age groups. CONCLUSION: The GMCD standardised in four diverse countries has appropriate accuracy for identification of children with developmental delay.

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BACKGROUND: Knowledge about typical development is of fundamental importance for understanding and promoting child health and development. We aimed to ascertain when healthy children in four culturally and linguistically different countries attain developmental milestones and to identify similarities and differences across sexes and countries. METHODS: In this cross-sectional, observational study, we recruited children aged 0-42 months and their caregivers between March 3, 2011, and May 18, 2015, at 22 health clinics in Argentina, India, South Africa, and Turkey. We obtained a healthy subsample, which excluded children with a low birthweight, perinatal complications, chronic illness, undernutrition, or anaemia, and children with missing health data. Using the Guide for Monitoring Child Development, caregivers described their child's development in seven domains: expressive and receptive language, gross and fine motor, play, relating, and self-help. Clinicians examining the children also completed a checklist about the child's health status. We used logit and probit regression models based on the lowest deviance information criterion to generate Bayesian point estimates and 95% credible intervals for the 50th percentile ages of attainment of 106 milestones. We assessed the significance of differences between sexes and countries using predefined criteria and regions of practical equivalence. FINDINGS: Of 10 246 children recruited, 4949 children (48·3%) were included in the healthy subsample. For the 106 milestones assessed, the median age of attainment was equivalent for 102 (96%) milestones across sexes and 81 (76%) milestones across the four countries. Across countries, median ages of attainment were equivalent for all play milestones, 20 (77%) of 26 expressive language milestones, ten (67%) of 15 receptive language milestones, nine (82%) of 11 fine motor milestones, 14 (88%) of 16 gross motor milestones, and eight (73%) of 11 relating milestones. However, across the four countries the median age of attainment was equivalent for only two (22%) of nine milestones in the self-help domain. INTERPRETATION: The ages of attainment of developmental milestones in healthy children, and the similarities and differences across sexes and country samples might aid the development of international tools to guide policy, service delivery, and intervention research, particularly in low-income and middle-income countries. FUNDING: Eunice Kennedy Shriver National Institute of Child Health and Human Development.

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Mental health problems affect 10-20% of children and adolescents worldwide. Despite their relevance as a leading cause of health-related disability in this age group and their longlasting effects throughout life, the mental health needs of children and adolescents are neglected, especially in low-income and middle-income countries. In this report we review the evidence and the gaps in the published work in terms of prevalence, risk and protective factors, and interventions to prevent and treat childhood and adolescent mental health problems. We also discuss barriers to, and approaches for, the implementation of such strategies in low-resource settings. Action is imperative to reduce the burden of mental health problems in future generations and to allow for the full development of vulnerable children and adolescents worldwide.

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