Smoking Tobacco and Drinking Study

Point prevalent abstinence was defined as biochemically-verified reports of no smoking in the 7 days prior to the 12 month assessment. Participants reporting no smoking in the past 7 days will be coded as abstinent from cigarettes. Participants with a salivary cotinine level \<11 ng/ml, indicating nonsmoking were considered confirmed nonsmokers

Time frame: 12 months post baseline

Population: Not all participants completed the Month 12 assessment

Point prevalent abstinence was defined as biochemically-verified reports of no smoking in the 7 days prior to the 3 month assessment. Participants reporting no smoking in the past 7 days will be coded as abstinent from cigarettes. Participants with a salivary cotinine level \<11 ng/ml, indicating nonsmoking were considered confirmed nonsmokers

Time frame: 3 months post baseline

Population: Not all participants completed the Month 3 assessment

Point prevalent abstinence was defined as biochemically-verified reports of no smoking in the 7 days prior to the 6 month assessment. Participants reporting no smoking in the past 7 days will be coded as abstinent from cigarettes. Participants with a salivary cotinine level \<11 ng/ml, indicating nonsmoking were considered confirmed nonsmokers

Time frame: 6 months post baseline

Population: Not all participants completed the Month 6 assessment

Follow-up Drinking Questionnaire will assess the presence and number of 24 hr quit attempts since the last assessment. This assessment will be used to calculate presence of at least one quit attempt in the assessment time period and scored as a yes or no.

Time frame: 3, 6, and 12 months post-baseline

Population: Data not collected.

HED is defined as the number of days in the past month with 4+ drinks consumed in a a single occasion for women and 5+ drinks for men. HED was assessed at 3, 6 and 12 months.

Time frame: 3, 6, and 12 months post-baseline

Population: Not all participants completed the assessment

Misuse of alcohol in the past year was assessed by the AUDIT-C. The AUDIT-C is a brief alcohol screening instrument that reliably identifies persons who are hazardous drinkers or have active alcohol use disorders (including alcohol abuse or dependence) and consists of 3 questions with a total score ranging from 0-12, and generally the higher the score, the more likely it is that a person's drinking is affecting his or her safety. Each AUDIT-C question has 5 answer choices valued from 0 points to 4 points. In men, a score of 4 or more is considered positive, optimal for identifying hazardous drinking or active alcohol use disorders. In women, a score of 3 or more is considered positive. Participants were given this assessment at months 3, 6, and 12.

Time frame: 3, 6, and 12 months post-baseline

Population: Not all participants completed the assessment

The Thoughts About Abstinence Questionnaire (TAAS, (Hall et al., 1991) is a 4 item self-report questionnaire that measures: 1) desire to quit heavy episodic drinking, 2) expected success at quitting, 3) expected difficulty of quitting, and 4) confidence in ability to quit on 10-point Likert scales (e.g., 1=no desire to quit; 10 = extremely ...adapted for heavy episodic alcohol use

Time frame: 3, 6, and 12 months post-baseline

Population: Data not collected.

The Thoughts About Abstinence Questionnaire (TAAS, (Hall et al., 1991) is a 3 item self-report questionnaire that measures: 1) desire to quit smoking, 2) expected success at quitting, 3) expected difficulty of quitting on 10-point Likert scales (e.g., 1=no desire to quit/lowest expectation/lowest level of difficulty to 10 = extreme desire to quit/highest expectation of success/highest expected difficulty) was assessed at baseline.

Time frame: At Baseline

The number of drinks per week was defined as drinks per week in the past 30 days and assessed at the 3,6,and 12 month assessments.

Time frame: 3, 6, and 12 months post-baseline

Population: Not all participants completed the assessment

Readiness to change tobacco use will be assessed with a single-item Readiness Ruler, developed and validated for use with young adult heavy smokers participating in brief intervention and the tobacco item from the Staging Health Risk Assessment (S-HRA) to compare stage of change across tobacco and alcohol use. Plans to limit smoking in next 30 days (or is already). Number of participants ready to change smoking in the next month assessed at 3, 6, and 12 months

Time frame: 3, 6, and 12 months post-baseline

Population: Not all participants completed the assessment

An attempt was defined by the participants response to the a question as to whether or not they had made an attempt to quit smoking during the course of treatment at the 3, 6, and 12 months post-baseline assessments. Participants who were determined to have made an attempt at least once during the entire course of treatment were scored as yes or no.

Time frame: 3, 6, and 12 month post-baseline

Population: Not all participants complete the assessment

A reduction was defined as the number of cigarettes smoked in past 7 days prior to the assessment by 50% or more compared to baseline number of cigarettes at 3, 6, and 12 month

Time frame: 3, 6, and 12 months post baseline

Population: Not all participants completed the assessment

Timeline Follow-back data will be used to calculate the sum of days using any tobacco or binge drinking in the past month.

Time frame: 3, 6, and 12 months post-baseline

Population: Not all participants completed the assessment

Readiness to change alcohol use will be assessed with a single-item Readiness Ruler, developed and validated for use with young adult heavy drinkers participating in brief intervention and the alcohol item from the Staging Health Risk Assessment (S-HRA) to compare stage of change across tobacco and alcohol use. Plans to limit drinking in next 30 days (or is already) Proportion of participants ready to change drinking in the next month assessed at 3, 6, and 12 months

Time frame: 3, 6, and 12 months post-baseline

Population: Not all participants completed the assessment