Implementing an Adolescent and Young Adult (AYA) mHealth Vaping Cessation Program Into Oncology Clinics

The purpose of this study is to understand e-cigarette use and interest in quitting by exploring e vaping behaviors among a cohort of AYA survivors (N=500). The investigators will also examine demographic, medical, and psychosocial factors associated with vaping behaviors. Primary Objectives: Phase 1. * Objective 1. Identify characteristics of adolescent and young adult childhood cancer survivors (AYA CCS) nicotine vaping behaviors (e.g., e-cigarette use, interest in quitting, and quit attempts) and associations with demographic (e.g., sex, race, socioeconomic status, LGBTQ+ identification), cancer-specific (e.g., diagnosis, treatment factors), and psychosocial and behavioral factors. * Objective 2. Develop strategies to improve implementation of an evidence-based, mHealth vaping cessation program within an AYA oncology clinic. * Objective 2a: Use qualitative interviews to explore patient preferences regarding program implementation (e.g., timing of assessment of vaping behavior, confidentiality, referral approach) and identify barriers to uptake. * Objective 2b: Interview and/or ask healthcare providers (e.g., practitioners, advanced practice providers, social workers practicing in AYA oncology settings) to complete open- ended questionnaires related to current processes (e.g., workflow), needs, and barriers for assessing e-cigarette use and vaping cessation referral processes. Evaluate healthcare providers' information needs, preferences, and tools needed for integrating e- cigarette assessment and cessation program referrals into current practice. Phase 2. * Objective 3. Develop and test vaping assessment and referral implementation processes (developed from Objectives 1 \& 2)., and uptake of an established mHealth vaping cessation program * Objective 3a: Using qualitative and quantitative measures, we will assess the reach (% of eligible AYA CCS that enrolled in mHealth program), adoption (% providers making referrals), strategy potential (provider/patient perceptions of referral process; appropriateness of program for patients), and maintenance (barriers/facilitators to implementation) of the program.