Little is known about e-cigarette use among persons in substance use disorder (SUD) treatment, or their use of e-cigarettes for smoking cessation. Prevalence of e-cigarette use and correlates of e-cigarette use for smoking cessation were examined among clients in SUD treatment. Participants (n = 332) were current cigarette smokers recruited from 20 residential SUD programs in California. We used multivariable logistic regression to identify correlates of using e-cigarettes for quitting smoking. Almost half (45.2%) of the sample had ever used e-cigarettes for smoking cessation, and 34% had used e-cigarettes in the past 30 days. Smokers who had used e-cigarettes for smoking cessation, compared to those who had not, were younger (adjusted odds ratio [AOR] = 0.94, 95% confidence interval [CI] = 0.91, 0.96), had more than a high school education (AOR = 1.69, 95% CI = 1.07, 2.68), sought treatment for both SUD and mental health disorder (AOR = 2.62, 95% CI = 1.38, 5.00), wanted help quitting smoking (AOR = 1.90, 95% CI = 1.03, 3.50) and perceived e-cigarettes as equally harmful (AOR = 3.03, 95% CI = 1.10, 8.33) or less harmful than tobacco cigarettes (AOR = 2.82, 95% CI = 1.02, 7.77). Black/African American and Hispanic/Latino participants were less likely to use e-cigarettes for smoking cessation than participants who identify as White. E-cigarettes were favorably perceived by clients in residential SUD treatment as a quit smoking aid. Treatment programs should consider how to advise clients with respect to the use of e-cigarettes for smoking cessation.

对接受物质使用障碍 (SUD) 治疗的人使用电子烟或使用电子烟戒烟知之甚少。在 SUD 治疗的客户中检查了电子烟的使用流行率以及电子烟使用与戒烟的相关性。参与者（n = 332）是从加利福尼亚州的 20 个住宅 SUD 项目中招募的当前吸烟者。我们使用多变量逻辑回归来确定使用电子烟戒烟的相关性。近一半（45.2%）的样本曾使用电子烟戒烟，34%的人在过去30天内使用过电子烟。与没有使用电子烟的吸烟者相比，使用电子烟戒烟的吸烟者更年轻（调整后的优势比 [AOR] = 0.94，95% 置信区间 [CI] = 0.91, 0.96），高中以上学历 (AOR = 1.69, 95% CI = 1.07, 2.68)，寻求治疗 SUD 和心理健康障碍 (AOR = 2.62, 95% CI = 1.38, 5.00)，需要戒烟帮助 (AOR) = 1.90, 95% CI = 1.03, 3.50) 并且认为电子烟与烟草同等有害 (AOR = 3.03, 95% CI = 1.10, 8.33) 或比烟草更小 (AOR = 2.82, 95% CI = 1.02, 7.77) ）。黑人/非裔美国人和西班牙裔/拉丁裔参与者比白人参与者更不可能使用电子烟戒烟。电子烟在住宅 SUD 治疗中被客户认为是戒烟辅助手段。治疗计划应考虑如何建议客户使用电子烟戒烟。95% CI = 1.38, 5.00)，需要戒烟帮助 (AOR = 1.90, 95% CI = 1.03, 3.50) 并且认为电子烟同样有害 (AOR = 3.03, 95% CI = 1.10, 8.33) 或危害更小比烟草卷烟 (AOR = 2.82, 95% CI = 1.02, 7.77)。黑人/非裔美国人和西班牙裔/拉丁裔参与者比白人参与者更不可能使用电子烟戒烟。电子烟在住宅 SUD 治疗中被客户认为是戒烟辅助手段。治疗计划应考虑如何建议客户使用电子烟戒烟。95% CI = 1.38, 5.00)，需要戒烟帮助 (AOR = 1.90, 95% CI = 1.03, 3.50) 并且认为电子烟同样有害 (AOR = 3.03, 95% CI = 1.10, 8.33) 或危害更小比烟草卷烟 (AOR = 2.82, 95% CI = 1.02, 7.77)。黑人/非裔美国人和西班牙裔/拉丁裔参与者比白人参与者更不可能使用电子烟戒烟。电子烟在住宅 SUD 治疗中被客户认为是戒烟辅助手段。治疗计划应考虑如何建议客户使用电子烟戒烟。黑人/非裔美国人和西班牙裔/拉丁裔参与者比白人参与者更不可能使用电子烟戒烟。电子烟在住宅 SUD 治疗中被客户认为是戒烟辅助手段。治疗计划应考虑如何建议客户使用电子烟戒烟。黑人/非裔美国人和西班牙裔/拉丁裔参与者比白人参与者更不可能使用电子烟戒烟。电子烟在住宅 SUD 治疗中被客户认为是戒烟辅助手段。治疗计划应考虑如何建议客户使用电子烟戒烟。