Please select the eligibility criteria that correspond to the clinical trial below.
Title: Vascular Effects of Regular Cigarettes Versus electronIc Cigarette Use
Brief Summary: The purpose of this study is to assess the effects of electronic cigarettes-nicotine and electronic cigarette-nicotine free on endothelial function as compared to traditional cigarettes. Due to ethical reasons, we cannot fully randomise all particpants to the three arms.

Participants who wish to quit smoking will be randomized to

1. Switch to electronic cigarettes containing nicotine plus flavor
2. Switch to electronic cigarettes containing flavor alone Those who do not wish to quit smoking will continue on the Tobacco Cigarette arm Treatment period will be 28 days


Options:
A: Inclusion Criteria:

* Residing in the newly merged Leeds South \& East, Leeds West or Leeds North CCG
* Registered as a current or ex-smoker in a General Practice participating in YLST
* Have attended for a 'Lung Health Check' and agreed to see the SCP as part of YLST
* Smoked within the last month or have exhaled CO reading of 6ppm or above.
* Have capacity to provide informed consent.
B: Inclusion Criteria:

* Aged 18 years and over
* Currently smoking ≥15 full strength tobacco cigarettes per day for at least 2 years, or roll-up tobacco equivalent (cigar or pipe smokers not included).
* Willing to stop tobacco cigarettes for period of study if required
* Willing not to use electronic cigarettes if required
* Able to give informed consent

Exclusion Criteria:

* Pregnant or lactating.
* Women of childbearing potential who do not abstain from sex or use effective contraception.
* On current prescribed medication for cardiovascular disease.
* History of cardiovascular disease (excluding hypertension), diabetes, active malignance or chronic renal disease.
* Nut allergy
* Participation in another clinical trial (other than observational trials and registries) with an investigational product and/or intervention within 30 days before visit 1.
C: Inclusion Criteria:

* Active conventional cigarette smoker

Exclusion Criteria:

* Health condition adversely affected by smoking, history or presence of cardiovascular disease
D: Inclusion Criteria for smoking intervention and weight management intervention:

* Participants must be Medicaid recipients receiving mental health treatment at one of the participating study sites in New Hampshire.
* 18 years or older

Additional Inclusion Criteria for smoking intervention only:

\*Smoking 5 or more cigarettes a day or a carbon monoxide level of 5 or higher at screening.

Additional Inclusion Criteria for weight management only:

\*Body Mass Index of 30 or higher or 25 or higher and sedentary lifestyle.

Exclusion Criteria for both interventions:

* Diagnosis of dementia or terminal illness (expected to result in death in 1 year or less)
* Nursing home
* Inability to speak or understand English

Additional exclusion Criteria for weight management only:

* Previous participation in the In SHAPE program
* Active eating disorder diagnosis
* Pregnancy

Additional exclusion Criteria for smoking intervention only:

\*Active alcohol or drug dependence with use in the past 30 days

Answer: B