Role of Depression and Anxiety in the Tobacco Epidemic

描述(申请人提供)：美国大多数吸烟者都想戒烟。尽管香烟使用量在过去几十年里有所下降，但吸烟在美国成年人中仍然很常见(21%)，是可预防的主要死亡原因。控烟努力大大降低了吸烟率(从1964年的43%)。然而，广泛的证据表明，吸烟流行率的下降在过去10年里停滞不前。造成这种停滞的原因尚不清楚。虽然控烟努力非常成功，但归根结底，这些战略可能不会惠及所有吸烟者。因此，这项拟议的研究将调查在过去20年中，阻碍成功戒烟的特定因素是否在吸烟者中变得更加普遍。我们还将研究这些因素可能导致持续吸烟的潜在途径。这项研究的结果将有助于更好地了解剩余吸烟者戒烟的障碍，为如何降低美国吸烟率的辩论提供参考。

DESCRIPTION (provided by applicant): The majority of smokers in the U.S. would like to quit. Despite declines in cigarette use during the past several decades, smoking remains common (21%) among U.S. adults and is the leading preventable cause of death. Tobacco control efforts have greatly reduced smoking prevalence (from 43% in 1964). However, extensive evidence shows that the decline in smoking prevalence has stagnated for the past 10 years. The reasons for this stagnation are unknown. While tobacco control efforts have been very successful, ultimately, these strategies may not reach all smokers. Therefore, the proposed study will examine whether the prevalence of specific factors that impede successful quitting have become more common among smokers over the past two decades. We will also examine potential pathways through which these factors may lead to persistent smoking. The results of this study will lead to a better understanding of the barriers to cessation among remaining smokers, informing the debate over how to lower the prevalence of smoking in the US.