Gender Differences in Drug Use among Individuals Under Arrest.

Background: Drug monitoring by drug testing of individuals under arrest provides an opportunity to detect drug use patterns within geographic areas. However, women have been omitted from large-scale monitoring efforts in criminal justice populations. The purpose of this study was to examine whether gender differences exist in drug use indicated by oral fluid collected in one U.S. jail. Methods: The study analyzed data collected in 2019-2020 from individuals under arrest (N = 191). Twenty-four percent of the sample identified as female. Oral fluid specimens were collected and then analyzed with enzyme-linked immunosorbent assay and liquid chromatography/tandem mass spectrometry. Logit regression models examined gender differences. Results: Women were more likely to test positive for methamphetamines than men (41% versus 22%, OR = 0.42, 95% CI 0.21-0.84). Significant gender differences were not found for other substances (marijuana, cocaine, and opioids), legality of drugs, or overall drug use. Conclusions: Because the National Institute on Drug Abuse aims to promote health equity, future drug monitoring in criminal justice populations should employ sampling approaches representing both women and men. This research would identify possible gender-based patterns of drug use and inform gender-based policies and clinical practices to prevent and treat drug misuse.