Please select the eligibility criteria that correspond to the clinical trial below.
Title: Developing and Scaling a Text Messaging Tool to Help Pregnant Smokers
Brief Summary: The goal of this project is to evaluate the effectiveness (Phase II) of a text-based program to be called Quit4Baby to support smoking cessation efforts of pregnant women who smoke.

In Phase II, Dr. Abroms will conduct a randomized clinical trial among 500 pregnant smokers who have been recruited from users of text4baby - the first large scale mobile health application in the United States. Developed and operated by Voxiva and Healthy Mothers, Healthy Babies (HMHB)-collaborators in this program -text4baby is a free national service that has enrolled more than 800,000 pregnant women and mothers of infants 0-1 nationwide and delivered more than 150 million health messages to them including messages encouraging them not to smoke during pregnancy and referring them to quit lines.

Hypothesis 1: Pregnant smokers who receive quit4Baby + text4Baby will demonstrate higher levels of knowledge about the dangers of second hand smoke and the benefits of smoking cessation for mothers and their infants than text4baby only users.

Hypothesis 2: Pregnant smokers who receive quit4baby + text4baby will report significantly higher rates of calling a quit line, discussions with their health provider and/or use of cessation counseling than those who receive Text4baby alone.

Hypothesis 3: Pregnant smokers who receive quit4baby + text4baby will have significantly more favorable quitting outcomes compared with text4baby alone.


Options:
A: Inclusion Criteria:

* Aged 16-24
* Own a personal Android mobile phone
* Live in Tajikistan

Exclusion Criteria:

* Cannot read Tajik or Russian
B: Inclusion Criteria:

1. Subscribe to the text4baby test messaging program
2. Pregnant
3. Smoke or recently quit (within last 2 weeks)- Smoking will be defined as self-report of smoking at least one cigarette in the past 7 days. Given that these individuals are recruited from text4baby users, we are confident that they will have cell phones and text messaging capacity.
4. Speak English
5. Willing to enroll in our study
6. 14 years old or older

Exclusion Criteria:

1. No longer subscribe to text4baby
2. Not pregnant
3. Not current smoker (within past 2 weeks)
4. Non-English speakers
5. Not willing to receive Quit4Baby messages or enroll in study
6. Younger than 14 years of age
C: Inclusion Criteria:

* HIV positive (diagnosed within the last 12 months prior to study/patient contact)
* Has access to a mobile phone
* Willing to receive and respond to text messages and calls from clinic and study staff (all arms)
* Willing to communicate and meet with PN (PN arm)
* Willing to meet with study staff for survey at study start, 6 months, and 12 months (all arms)
* regard study clinic area as the regular clinic for accessing healthcare

Exclusion Criteria:

* First tested positive over 12 months prior to recruitment
* Under the age of 18
* Unable to give informed consent
* Unable to read basic English and with no one to read study sms to participant
* Principally accesses care through a clinic not in the study
* Planning to permanently move away from the area served by the clinic within next 6 months (following enrollment)
D: Inclusion Criteria:

* First dose of primary vaccination series
* Parents owning a mobile phone and able to decipher SMS messages
* Consent form signed

Exclusion Criteria:

* Moving away from the study site in the next 12 months
* Ineligible for primary vaccination series by the MOH

Answer: B