Treating Chinese Smokers With Interactive Expert System

The research study examined the feasibility, implementation, and efficacy of the interactive expert system intervention for smoking cessation in the Chinese American population.

Study Overview

• Status: Completed
• Conditions: Smoking Cessation
• Intervention / Treatment: Behavioral: Standard Self-Help; Behavioral: Expert System

Detailed Description

The research study examines the feasibility, implementation, and efficacy of the interactive expert system intervention for smoking cessation in the Chinese American population. The primary specific aim of the proposed research is to test the following hypotheses: 1) Proactive recruitment approach will be more effective in recruiting smokers who are in precontemplation (no intent to quit smoking in the next 6 months) than a reactive approach. 2) Participants in the experimental condition receiving the interactive stage-matched expert system intervention plus a manual will be more likely to be abstinent at 12 and 18 than those in the control condition receiving a non-interactive standard manual. 3) Participants receiving the interactive expert system intervention will be more likely to report at least one quit attempt than those in the control condition at months 6, 12, and 18. 4) Participants receiving the interactive expert system intervention will be more likely to have a significant decrease in number of cigarettes smoked than those in the control condition at months 3, 6, 12, and 18. After the intervention adaptation and the pilot testing phase of study procedures, the study will achieve the above aims using a randomized trial targeting 400 Chinese American Smokers with follow-up assessments at 3, 6, 12, and 18 months after baseline.

• Study Type: Interventional
• Enrollment (Actual): 363
• Phase: Not Applicable

Contacts and Locations

Study Locations

• United States
  • California
    • San Francisco, California, United States, 94143
      • UCSF Langley Porter

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• residents of the San Francisco Bay Area
• age 18 or older
• self-identified as Chinese in ethnicity
• able to read English or Chinese
• have smoked at least 100 cigarettes in their lifetime
• currently smoke at least 5 cigarettes in the past 7 days

Exclusion Criteria:

• currently engaging in other smoking cessation efforts.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Active Comparator: Standard Self-Help; receive a standard self-help manual in Chinese and English of the participants' choice at baseline	Behavioral: Standard Self-Help; standard smoking cessation self-help manual
Experimental: Expert System; receive an expert system intervention that included the Pathway-To-Change self-help manual and a series of 3 individualized feedback reports at baseline, 3, and 6 months.	Behavioral: Expert System; an expert system intervention provided the Pathway-To-Change self-help manual and a series of 3 individualized feedback reports at baseline, 3, and 6 months.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
abstinence	self-report 7-day point prevalence abstinence of cigarette use	18 months

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
quit attempt	self-report of 24-hour quit attempt	18 months
reduction	smoking reduction from baseline	18 months

Collaborators and Investigators

• Sponsor: University of California, San Francisco
• Collaborators: National Institute on Drug Abuse (NIDA)
• Investigators: Principal Investigator: Janice Tsoh, PhD, University of California, San Francisco

Study record dates

Study Major Dates

• Study Start: August 1, 2001
• Primary Completion (Actual): January 1, 2004
• Study Completion (Actual): August 1, 2005

Study Registration Dates

• First Submitted: July 9, 2008
• First Submitted That Met QC Criteria: July 9, 2008
• First Posted (Estimate): July 14, 2008

Study Record Updates

• Last Update Posted (Actual): December 11, 2018
• Last Update Submitted That Met QC Criteria: December 7, 2018
• Last Verified: December 1, 2018

More Information

Terms related to this study

• Keywords: randomized trial; smoking cessation; Asian; stages of change; Chinese American
• Other Study ID Numbers: 5K23DA000468 (U.S. NIH Grant/Contract)

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO