for people ages 18 years and up (full criteria)
Healthy Volunteers
healthy people welcome
study started
completion around
Principal Investigator
by Maya Vijayaraghavan, MD (ucsf)
Headshot of Maya Vijayaraghavan
Maya Vijayaraghavan



Comprehensive smoke-free policies have the potential to substantially reduce tobacco-related disparities among populations in subsidized housing. This study fills this gap by identifying approaches to increase the implementation of smoke-free policies in all types of subsidized housing by increasing the voluntary adoption of smoke-free homes and promoting access to smoking cessation services.

Official Title

Healthy Homes Study: A Protocol for a Place-based Smoke-free Home Intervention in Federally Subsidized Housing



The investigators will build on previous studies, where a smoke-free home intervention to increase voluntary adoption of smoke-free homes in permanent supportive housing for formerly homeless adults was developed and evaluated.

Aim 1: To estimate the effect of our adapted smoke-free home intervention on the primary outcome of residents' voluntary adoption of smoke-free homes and the secondary outcome of biochemically-verified tobacco abstinence at 6-months follow-up.

Aim 2: To determine the cost of our adapted smoke-free home intervention and determine whether it is a cost-effective use of health care resources.

Aim 3: To evaluate variation in stakeholders' perspectives on the adapted smoke-free home intervention's adaptability, scalability and sustainability.The proposed intervention can expand access to smoke-free policies and smoking cessation services in subsidized housing, thereby reducing racial/ethnic disparities in tobacco use, tobacco exposure and chronic disease in these populations.


A wait-list cluster randomized controlled trial of the adapted smoke-free home intervention compared to usual care among residents from subsidized housing sites in Northern California. Participants from twenty-four subsidized housing sites will be randomized into intervention and waitlist control arms


Tobacco Dependence, Tobacco Smoking, Tobacco Use Disorder, Smoke-free home resident intervention, Lay Health Worker coaching


You can join if…

Open to people ages 18 years and up

Eligible resident participants

  • Current smokers defined as:
    • Smoked at least 100 cigarettes in lifetime
    • Smoked daily in the past 7 days, and at least 5 cigarettes per day, verified by expired CO ≥ 5 parts per million [ppm] Smokerlyzer CO+ monitor),
    • Smoke in their home
  • Expect to live in the subsidized housing site for at least 12 months
  • Age ≥ 18 years
  • Speak Chinese (Cantonese or Mandarin), English, Spanish, or Vietnamese
  • Able to provide informed consent.

You CAN'T join if...

  • Contraindication to any study-related procedures or assessment


  • University of California, San Francisco accepting new patients
    San Francisco California 94143 United States

Lead Scientist at University of California Health

  • Maya Vijayaraghavan, MD (ucsf)
    Dr. Vijayaraghavan is a practicing general internist and a researcher in tobacco control with a focus on populations experiencing homelessness. She is the Director of the UCSF Smoking Cessation Leadership Center, a Center focused on eliminating disparities in tobacco use prevalence among behavioral health populations.


accepting new patients
Start Date
Completion Date
University of California, San Francisco
Study Type
Expecting 544 study participants
Last Updated