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Creating Smokefree Living Together for Chinese Household Pairs

This study has been completed.
University of California, San Francisco
Information provided by (Responsible Party):
University of California, Davis Identifier:
First received: April 26, 2012
Last updated: June 1, 2015
Last verified: June 2015
This is a trial of household pairs of a Chinese smoker and nonsmoker randomized either to a smoke-free educational intervention or self-help control group. The smokefree educational intervention includes group education about smokefree environments and smoking cessation, follow-up phone calls, and tobacco exposure lab reports. The control group is referred to usual care with local in-language smoking cessation classes or quitline, and is otherwise assessment only. The investigators hypothesize that pairs in the intervention group will have higher rates of tobacco cessation and elimination of smoke exposure, compared to the control group.

Condition Intervention
Smoking Smoke Exposure Behavioral: Smokefree counseling

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single (Participant)
Primary Purpose: Prevention
Official Title: "Creating Smokefree Living Together": Smokefree Counseling Intervention for Chinese Smokers and Household Nonsmokers

Resource links provided by NLM:

Further study details as provided by University of California, Davis:

Primary Outcome Measures:
  • Smoking cessation [ Time Frame: 12 months ]
  • Elimination of secondhand smoke exposure [ Time Frame: 12 months ]

  • Urine NNAL (4-(Methylnitrosamine)-1-(3-pyridyl)-1-butanol) [ Time Frame: 12 months ]
    Smoker and nonsmoker; NNAL is a tobacco-specific carcinogen

Secondary Outcome Measures:
  • Cigarette consumption [ Time Frame: 12 months ]

  • Rule for no smoking in home [ Time Frame: 12 months ]
    Smoker and nonsmoker

  • Reduction in secondhand smoke exposure [ Time Frame: 12 months ]

Enrollment: 410
Study Start Date: April 2012
Study Completion Date: May 2015
Primary Completion Date: May 2015 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
No Intervention: Usual care
Household pairs that are assessment only and receive usual care of local in-language smoking cessation resource referral including quitline.
Experimental: Smokefree counseling
Household pairs assigned to smokefree counseling intervention, consisting of group education sessions, tobacco exposure lab report, individual follow-up phone calls.
Behavioral: Smokefree counseling
Smokefree counseling intervention involves group education sessions, follow-up phone calls, tobacco exposure lab report. Comparison is usual care with referral to local in-language smoking cessation services including quitline.


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Self-identified Chinese Americans who primarily speak Chinese
  • Self-identified current smoker men and nonsmoker women
  • Pair lives in same household

Exclusion Criteria:

  • Current smoker women
  • Nonsmoker men
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01592682

United States, California
Chinatown Public Health Center
San Francisco, California, United States, 94133
Sponsors and Collaborators
University of California, Davis
University of California, San Francisco
Principal Investigator: Elisa K Tong, MD, MA University of California, Davis
  More Information

Responsible Party: University of California, Davis Identifier: NCT01592682     History of Changes
Other Study ID Numbers: 261778
RSGT-10-114-01-CPPB ( Other Grant/Funding Number: American Cancer Society )
Study First Received: April 26, 2012
Last Updated: June 1, 2015

Keywords provided by University of California, Davis:
secondhand smoke
NNAL processed this record on September 19, 2017