Thongpet, T., Thongpeth, W. and Kraonual, S. 2026. Risk Factors for Postoperative Delirium in Older Adults Undergoing Major Orthopedic Surgery: A Systematic Review and Meta-Analysis. Journal of Southeast Asian Orthopaedics. (Mar. 2026). DOI:https://doi.org/10.56929/jseaortho-2026-0289.