Natural History of Attempts to Stop Smoking
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 238
- 试验地点
- 1
- 主要终点
- prediction of quit attempts
研究概览
简要总结
Smoking cessation can be enhanced either by increasing the success of quit attempts or by increasing in the number of quit attempts. The investigators are interested in what causes a smoker to make a quit attempt. The investigators will test whether certain events (e.g., a request from a child to quit smoking or exposure to a smoking-related health message) increase the probability of a quit attempt in the near future. The investigators are will test whether planning behaviors (e.g. seeking information about treatment) and setting a quit date are common and increase the probability of a quit attempt. Finally, the investigators want to see if spontaneous, unplanned quit attempts are common and are more or less successful than delayed, planned quit attempts. In a pilot study, the investigators will develop measures of the most common events and planning activities. In the main study, the investigators will recruit 200 adult daily smokers who are interested in quitting in the next 3 months. They will call a phone daily and use the phone's keypad to enter data plus they will complete mailed or internet questionnaires weekly for 3 months. The results of this study will a) help us understand what prompts smoking cessation attempts, b) help develop media messages and individual interventions to motivate smokers to make a quit attempt, and c) help determine whether spontaneous, impulsive quit attempts or delayed, planned quit attempts should be encouraged.
详细描述
METHODS Pilot Studies
One of our foci was on whether certain external events (prompts or cues) increase the probability of a quit attempt. We could not locate validated measures of possible external cues or planning activities for a quit attempt; thus, in Pilot Study 1, we recruited 28 daily, adult smokers of who had stopped smoking for at least 24 hours in the past month (including Hispanics, African-Americans, smokers whose income was below 1.5x poverty level, who were under age 24, and both men and women) to respond to a semi-structured telephone interview to identify possible causes of and preparations for their recent quit attempt. We used these responses to produce a list of 13 possible prompting events and two possible planning activities. In Pilot Study 2, we tested the ease of use of our IVR system and the clarity of our prompts. We will recruited smokers in the protocol described below including some who had a high school education or less and some who were 60 years or older. The only differences between this pilot study and the main study were that: a) IVR response options included a "don't know/unclear" option, and b) we will conduct a qualitative interview two weeks into the pilot 2 study to determine problems with IVR usage and understanding of the cue items. The pilot studies and the main study were approved by the University of Vermont Committees on the Use of Human Subjects.
Overview of Main Study
We will conduct a prospective cohort study of 200 adult daily smokers who were interested in quitting smoking in the next two months. Participants will call an interactive voice response (IVR) system daily for 3 months to report daily smoking, prompts to quit, planning events, and intentions to quit. In addition, they will complete more lengthy monthly questionnaires via mail or internet and, if they attempted to quit, a post-quit qualitative interview. We provided no intervention. The main aim was to determine which, if any, external cues to stop smoking or preparations for quitting prospectively increased the probability of a quit attempt. A secondary aim is to compare the predictive power of certain cessation-related internal cognitive variables versus external cues on quit attempts.
Participants
研究设计
- 研究类型
- Observational
- 观察模型
- Ecologic Or Community
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •> 18 yrs of age
- •smoke cigarettes daily for at least 1 year
- •is able to read and write English
- •as a final test of eligibility the investigators will determine if the person is compliant enough to participate in this study. The investigators will use 2 criteria:
- •they must complete 5 of 7 IVR sessions in the first week
- •they must complete the baseline questionnaires within one week of beginning the IVR sessions.
排除标准
- •pregnancy
结局指标
主要结局
prediction of quit attempts
时间窗: 3 mo
次要结局
- success of quit attempts(3 mo)
研究者
John Hughes
Professor of Psychiatry
University of Vermont