Heroin assessment in Spanish population-based studies: the state of the art and recommendations for the future

Key Points

• To evaluate the differences in heroin use studies and recommend future improvements for data collection.
• Reviewed various studies on heroin use across different populations and geographies.
• Emphasized the inclusion of users' perspectives in survey design to enhance data quality.
• Identified variations in data collection methods affecting standardization.
• Highlighted significant variability in heroin use studies across geographic locations.
• Found that incorporating user perspectives improves survey design and data comparability.
• Recommended standardized approaches for future research on heroin use.