Please select the eligibility criteria that correspond to the clinical trial below.
Title: Smoking Cessation and the Natural History of HIV-Associated Emphysema
Brief Summary: People that are infected with HIV appear to be especially susceptible to the adverse effects of cigarette smoking. The purpose of this study is to determine if quitting smoking by using a specialized smoking cessation treatment can prevent one from developing accelerated lung damage, particularly emphysema.


Options:
A: Inclusion Criteria:

* Male or female cigarette smokers, 18-75 years, motivated to stop smoking and considered suitable for a smoking cessation attempt
* Smoked an average of at least 10 cigarettes per day during past year and over past month, and exhaled carbon monoxide (CO) \> 10 ppm at screening
* Current or past diagnosis of MDD without psychotic features, either single or recurrent, using DSM IV TR based on clinical assessment and confirmed by SCID and at least one of the following:
* On stable antidepressant treatment for MDD (stable dose for at least 2 months)
* Major depressive episode, using DSM IV TR, in the past 2 years successfully treated

Exclusion Criteria:

* Current or past diagnosis of dementia, schizophrenia, schizoaffective disorder, or other psychotic disorder, bipolar I disorder, bipolar II disorder.
* Subjects with antisocial, schizotypal, or any other personality disorder severe enough to compromise the subject's ability to comply with the study requirements..
* Current use of either bupropion or nortryptiline.
B: Inclusion Criteria:

* The investigators will recruit patients who are assessed in preadmission clinic and scheduled for elective surgical procedures within the next 8 to 30 days.
* Patients should be 18 yrs of age, have smoked an average 10 cigarettes/day or more during the previous year and had no period of smoking abstinence longer than 3 months in the past year.

Exclusion Criteria:

* current pregnancy, breastfeeding;
* major depression, panic disorder, psychosis, or bipolar disorder within the prior year;
* use of nicotine replacement or bupropion within the previous 3 months;
* cardiovascular disease within the past 6 months;
* a serious or unstable disease within the past 6 months;
* drug or alcohol abuse or dependence within the past year;
* and use of tobacco products other than cigarettes or marijuana use within the previous month;
* participating in any other studies
* Patients who cannot understand English or have any form of cognitive impairment will be excluded.
C: Inclusion Criteria:

1. 18 years of age and older;
2. diagnosis of HIV;
3. self-reported smoking on a daily basis;
4. provide informed written consent

Exclusion Criteria:

1. persons with active psychosis or impaired mental status as judged by the clinic staff and confirmed with a Mini-Mental Status Exam)
2. unable to understand spoken English
3. age less than 18 years.
4. pregnant women
D: Inclusion Criteria:

* Smokers aged 18 years or above and wanting to stop smoking
* Smokers who have smoked an average of at least 10 cigarettes per day over the last 4 weeks
* Smokers who have tried before to stop smoking at least once with varenicline, and who took varenicline for at least 2 weeks
* The last attempt to stop smoking must be at least 3 months before entering the study

Exclusion Criteria:

* Individuals who have not tolerated varenicline well previously, or who have a current or prior medical or psychiatric history that would make entry into the trial inadvisable
* Individuals who have previously participated in clinical trials of varenicline
* Individuals who have been participating in another smoking cessation trial within the last 3 months, or other drug trial within the last 30 days

Answer: C