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Original Articles

Agreement between Youth Self-Report and Biospecimen-Confirmed Substance Use: A Systematic Review

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Figures & data

Figure 1. PRISMA flow diagram. Abbreviation: PRISMA: preferred reporting items for systematic reviews and meta-analyses.

Figure 1. PRISMA flow diagram. Abbreviation: PRISMA: preferred reporting items for systematic reviews and meta-analyses.

Table 1. Bias risk assessment ratings.

Table 2. Kappa statistics by biospecimen, substance, and self-report period among studies that reported kappa values.