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INTRODUCTION Motivations for using electronic nicotine delivery systems (ENDS) include quitting or reducing cigarette smoking, flavor, and addiction. This study examines whether the primary reason for continued ENDS usage changes over time, and its association with device and liquid characteristics. METHODS Data are from a longitudinal cohort study and include 526 US adults (=21 years) using ENDS frequently (=5 days/week) as self-reported, and uploaded photos of their most used ENDS devices and liquids and self-reported primary reason for continued ENDS usage in wave 2 (December 2020-April 2021) and wave 5 (February-April 2023). Device-liquid grouping was defined by device (disposable/disposable pod/refillable pod/tank, adjustable/no adjustable settings) and liquid (salt/freebase) characteristics. A device was classified as having adjustable settings if it allowed users to modify the power, coil, or airflow. Data were analyzed using multivariable logistic regressions and McNemar tests. RESULTS From wave 2 to 5, the primary reason for continued ENDS usage significantly changed, with more participants reporting addiction (29.2% vs 34.6%, p<0.001); and significantly more participants used disposable devices (salt, no adjustable settings) (7.9% vs 25.2%, p<0.001). Compared to those using tanks (freebase, adjustable settings), participants using devices with nicotine salt liquids were more likely to report addiction (AOR>2; 95% CI: 1.12-8.19); and participants using disposable devices (salt, no adjustable settings) were less likely to report quitting/reducing smoking as the primary ENDS use reason after controlling for smoking status and sociodemographic characteristics (AOR<0.6; 95% CI: 0.14-0.995). CONCLUSIONS Over a 2.5-year period, the proportion of participants continuing to use ENDS at least 5 days/week because of addiction grew, and participants' motivations varied by device-liquid grouping. Restrictions on nicotine salts may disproportionately impact those using ENDS because of addiction; and regulations targeting tanks with freebase liquids may disproportionately impact those using ENDS for smoking cessation/reduction. [ABSTRACT FROM AUTHOR]

This paper describes my experiences with coming to understand my own relationship with alcohol dependency and addiction. Disability studies has offered me a lens and guide through which I have critically interrogated discourses about addiction, while examining the ways dominant and counter-narratives have impacted my own recovery process. In this paper, I review historical information about the emergence of culturally accepted recovery ideologies in the United States that have led to a dominant disease model perspective. Then, I explain the disability studies-informed theoretical underpinnings of this paper, which include discourse theory and disability studies as applied to alcohol addiction. Using disability studies and autoethnography as a guide, the body of the paper uses examples from my own journals to elucidate salient themes that emerged about my experiences in early recovery. The paper uncovers the ways I came to understand my own identity related to addiction, how I navigated feelings of stigma and shame, the ways I found recovery spaces that embraced empowering frameworks aligned to a disability studies ethos, and how I discovered community and pride through this experience. [ABSTRACT FROM AUTHOR]