Global Trends in Autistic Disorder Diagnosis and Intervention Outcomes—A Systematic Review, Meta-analysis and Meta-Regression

This review protocol outlines a comprehensive meta-analysis of global trends in Autism Spectrum Disorder (ASD) diagnosis and intervention. It aims to assess regional and socioeconomic disparities in diagnosis rates, evaluate the effectiveness of various treatment modalities, and analyze the impact of healthcare infrastructure and cultural perceptions on ASD outcomes. By synthesizing international data and performing meta-regression on key variables such as age at diagnosis and intervention type, the study seeks to identify best practices and gaps in care. The findings will inform more equitable and standardized approaches to ASD management across diverse populations.