Socio-Demographic Characteristics and Patterns of Substance Use Disorder in Oman: A retrospective study of the National Registry Surveillance Programme between 2004 and 2018.

Objectives: Substance use disorder is a global challenge. Therefore, this study aimed to provide an updated view of socio-demographic characteristics and patterns of substance use in Oman.

Methods: This retrospective descriptive study was conducted between 2004 and 2018.