Monteiro, Ingridi Teixeira and Simon, Ana Carolina and Schmitt, Bettina Vargas and Dallarosa, Guilherme Tarnowski and Viola, Thiago Wend (2026) Global patterns in age of substance use initiation: a systematic review and meta-analysis of continental and temporal trends in 58 countries. Revista Brasileira de Psiquiatria, 48, e20254422. DOI: 10.47626/1516-4446-2025-4422.