Correction to Lancet Psychiatry 2020; 7: 1032–45

Johnson EC, Demontis S, Thorgeirsson TE, et al. A large-scale genome-wide association study meta-analysis of cannabis use disorder. Lancet Psychiatry 2020; 7: 1032–45—In table 1 of this Article, and sections of the Summary, Methods, and Results, the sample size of the Add Health cohort should have been 847 cases and 4839 controls. Subsequently, the overall sample size for the European ancestry Psychiatric Genomics Consortium cohorts should have been 8402 cases and 24 265 controls, the overall sample size for the full European ancestry meta-analysis should have been 17 193 cases and 357 987 controls, and the sample size for the full, transancestral meta-analysis should have been 21 041 cases and 363 884 controls. These corrections have been made as of Feb 24, 2022.