INTRODUCTION Of youth experiencing homelessness (YEH; 14-24 years old), 70%+ smoke combusted, commercial tobacco. Though many have tried to quit, most use ineffective methods. Drop-in centers for YEH are opportune places to link YEH to evidence-based treatment. Using the Phase-Based Model (PBM) to Cessation Research, the aim of this study was to identify "Motivation" phase-specific challenges impacting YEH's willingness to make a quit attempt-the goal of this cessation phase. METHODS Surveys were interview-administered with 96 past-week combusted tobacco users accessing drop-in services. Regression models were fit to confirm hypothesized challenges impacting YEH's willingness to quit. RESULTS Moderate nicotine dependence was noted-a key Motivation phase cessation mechanism targeted-and was associated with population challenges including, but not limited to, replacing food with tobacco, accidental oxygen-deprivation events, and smoking to socialize. While 67.1% of participants made a past-year quit attempt, 45.8% expressed 30-day quit interest. Dimensions of coping with housing were associated with quit attempts and quit interest. Quit attempts were also associated with nicotine dependence, working, and smoking to socialize. Whereas, quit interest was associated with less endorsement of smoking to regulate affect and more endorsement to avoid danger. CONCLUSIONS Though common challenges targeted in Motivation phase cessation exist among YEH, other challenges may also need to be addressed to promote quitting. IMPLICATIONS Future research in optimizing evidence-based cessation access for YEH through drop-in centers may consider addressing the challenges of housing, food security, social context, violence, and neurotrauma sequela to bolster YEH willingness to make a quit attempt.

中文翻译：

---

为美国无家可归的青少年确定新的动机阶段特定的戒烟目标。

简介 在无家可归的青少年（YEH；14-24 岁）中，70% 以上吸烟的是商业烟草。尽管许多人尝试过戒烟，但大多数都使用无效的方法。YEH 临时中心是将 YEH 与循证治疗联系起来的合适场所。使用基于阶段的模型 (PBM) 进行戒烟研究，本研究的目的是确定影响 YEH 尝试戒烟的意愿（此戒烟阶段的目标）的“动机”阶段特定挑战。方法 对过去一周接受过上门服务的 96 名燃烧烟草使用者进行访谈。回归模型适合确认影响 YEH 戒烟意愿的假设挑战。结果 注意到中度尼古丁依赖——这是一个关键的动机阶段停止机制——并且与人口挑战相关，包括但不限于用烟草代替食物、意外缺氧事件和吸烟社交。67.1% 的参与者在去年尝试过戒烟，而 45.8% 的参与者表示有 30 天戒烟的兴趣。应对住房的维度与戒烟尝试和戒烟兴趣相关。戒烟尝试还与尼古丁依赖、工作和吸烟社交有关。然而，戒烟兴趣与较少认可吸烟以调节情绪和更多认可吸烟以避免危险相关。结论 虽然 YEH 中存在针对动机阶段戒烟的常见挑战，但可能还需要解决其他挑战以促进戒烟。影响 未来通过临时中心优化 YEH 循证戒烟途径的研究可能会考虑解决住房、粮食安全、社会环境、暴力和神经创伤后遗症等挑战，以增强 YEH 尝试戒烟的意愿。