Correction to Lancet Glob Health 2017; 5: e1192–207

Degenhardt L, Peacock A, Colledge S, et al. Global prevalence of injecting drug use and sociodemographic characteristics and prevalence of HIV, HBV, and HCV in people who inject drugs: a multistage systematic review. Lancet Glob Health 2017; 5: e1192–207—In this Article, a transcription error occurred during the preparation of the manuscript. As such, data have been updated for the estimates of people who inject drugs who were positive for hepatitis B virus surface antigen in the Summary and eleventh paragraph of the Results section. Data have also been updated in the western Europe, south Asia, Caribbean, Middle East and north Africa, and global rows of table 2; the HBV columns of table 3; the western Europe, Caribbean, and global rows of the women column in table 4; and the appendix. These corrections have been made to the online version as of Nov 15, 2017.