“…Though the finding that people experiencing homelessness account for so large a share of Los Angeles' methamphetamine-related deaths is novel, it squares with previous studies of homelessness, mortality, and methamphetamine use. Homelessness is a known risk for premature mortality from a variety of specific causes, including overdose, cardiovascular disease, and infectious diseases (Brown et al, 2022;Chandra et al, 2022;Chang et al, 2022;Nicholas, Greenwell, Henwood, & Simon, 2021). Previous studies in Los Angeles have documented an association between homelessness and recent methamphetamine use (Anderson-Carpenter, Fletcher, Swendeman, & Reback, 2019), including among youth, where peer group methamphetamine use has been shown to be especially salient (Barman-Adhikari, Begun, Rice, Yoshioka-Maxwell, & Perez-Portillo, 2016;Zhao, Kim, Li, Hsiao, & Rice, 2018).…”