Please select the eligibility criteria that correspond to the clinical trial below.
Title: NCI Young Adult Smoking Cessation Evaluation
Brief Summary: Background:

- Researchers want to see how well the QuitTXT text-message program helps smokers ages 18 29 stop smoking. This is part of a larger online stop-smoking program by the National Cancer Institute. The QuitTXT program is a 2-week countdown to the smoker s quit date with 6 weeks of follow-up messages. Program participants will receive texts on their cell phones, including tips, information, and motivational messages, and then fill out surveys.

Objectives:

- To study how well the QuitTXT program helps smokers ages 18 29 stop smoking.

Eligibility:

- Adults ages 18 29 who have smoked on at least 5 of the past 30 days and who want to stop smoking in the next 30 days.

Design:

* Participants will receive a certain number of text messages during the 8-week study. They will receive between 0 to 5 messages per day (or up to a total of 130 messages).
* Participants will first fill out a survey about their smoking and quitting experiences. Then they will choose a date to quit smoking (a quit date ) between 2 and 3 weeks after this survey.
* Participants will take four other surveys online, one during the program and three more after they ve completed the program. Each survey will take about 10 20 minutes and asks about their smoking habits and views on smoking and quitting. Each survey will be sent by email, with reminders sent by email or telephone.
* Participants will receive an iTunes or Amazon gift card for completing each survey honestly.


Options:
A: Inclusion Criteria:

* Smoke 5+ cigarettes/day
* \< 3 months abstinence in the past year
* Have a smartphone
* Score greater than or equal to 8 of 10 on the Contemplation Ladder (Biener \& Abrams, 1991)

Exclusion Criteria:

* None
B: * For this study, we will recruit smokers aged 18 to 29 who have smoked on at least 5 of the last 30 days and who are interested in stopping smoking in the next 30 days. To be eligible, a young adult must meet the following criteria:

Ages 18-29 years

Reside in the US

Smoke cigarettes at least 5 days/month

Be interested in quitting cigarette use

Not be involved in a cessation program

Have an active email account

Be able to receive text messages on their cell phone

Be the only member of your household participating in this study

Be willing to share contact information with the study team in order to share information about the study on a timely basis.
C: Inclusion Criteria:

* regular cigarette smoker
* age ≥ 18
* mailing address \& valid photo I.D.
* want transdermal nicotine

Exclusion Criteria:

* not English speaking
* in recovery for pathological gambling
* contraindication for transdermal nicotine
* female who is pregnant, nursing a child, or not using effective contraception
D: Inclusion Criteria:

* Students from Germany aged 9 to 14 years at baseline attending grades six and seven of regular German secondary schools (such as grammar, general, intermediate or comprehensive school) are eligible.

Exclusion Criteria:

* Older or younger pupils or pupils from other school types or countries or schools who previously participated in an event where the Smokerface app was presented are not eligible.

Answer: B