Project CASA in Promoting Smoke-Free Indoor Air Policy in Mexican American Households

Not Applicable

Completed

• Conditions: Cigarette Smoker; Current Smoker; Currently Living With Smoker
• Interventions: Behavioral: Smoking Cessation Intervention; Other: Informational Intervention; Other: Survey Administration

• Registration Number: NCT00850954
• Lead Sponsor: M.D. Anderson Cancer Center

Brief Summary

This trial studies the effect of an intervention program, Project CASA, on smoking cessation and reducing secondhand smoke exposure in Mexican American households. Project CASA, comprising pamphlets and fotonovelas (illustrated storybooks), may provide valuable information to participants on how to improve the air quality in their homes.

Detailed Description

PRIMARY OBJECTIVES:

I. Reduction in secondhand smoke exposure: The study will distinguish if a tailored intervention designed to address the needs of the target group will reduce objectively and subjectively measured secondhand smoke exposure of nonsmokers in Mexican American (MA) households.

Ia. Develop tailored fotonovelas for intervention implementation. II. Smoking cessation: The study will identify if a tailored intervention designed to address the needs of the target group will help the primary smokers in the household quit smoking.

III. Stages of change: The study will identify if the proposed intervention will have a significant impact on the primary smoker(s) progression through the stages of smoking cessation.

IV. Knowledge and attitudes: The study will identify if the proposed intervention will result in better knowledge and changed attitudes towards secondhand smoke exposure among members of MA households (smokers and nonsmokers) compared to standard care.

V. Perceived health: The study will distinguish whether reduced exposure to secondhand smoke would improve perceived health.

OUTLINE: Participants are assigned to 1 of 2 groups based on smoking status.

GROUP I (SMOKERS): Participants receive smoking cessation intervention materials based on transtheoretical model of change (TTM).

GROUP II (NON-SMOKERS): Participants receive fotonovelas and other materials on secondhand smoking and how to assist the smoker in quitting.

Participants are followed up at 6 and 12 months to assess for home air quality.

Study Timeline

• Study Start: 2006-08-08
• Study First Submitted: 2009-02-24
• Study First Submitted QC: 2009-02-24
• Study First Posted: 2009-02-25
• Primary Completion: 2018-08-07
• Study Completion: 2018-08-07
• Status Verified: 2022-06
• Last Update Submitted: 2023-09-26
• Last Update Posted: 2023-09-28

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 168

Inclusion Criteria

• Live in the targeted Mexican American neighborhoods.
• Can read Fotonovelas in English and Spanish.
• Access to telephone.
• Smoker in household (adult [18+] person living in the household who smokes INSIDE at least one cigarette a week).

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Exclusion Criteria

Not provided

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Group I (smoking cessation)	Survey Administration	Participants receive smoking cessation intervention materials based on TTM.
Group II (informational)	Survey Administration	Participants receive fotonovelas and other materials on secondhand smoking and how to assist the smoker in quitting.
Group I (smoking cessation)	Smoking Cessation Intervention	Participants receive smoking cessation intervention materials based on TTM.
Group II (informational)	Informational Intervention	Participants receive fotonovelas and other materials on secondhand smoking and how to assist the smoker in quitting.

Primary Outcome Measures

Name	Time	Method
Level of nicotine measured at 6 month post intervention	6 months after treatment	Method of analysis is a pre-post test analysis of covariance, ANCOVA, using a linear regression model (PROC REG in SAS). In this analysis, the prevalence of nicotine levels at the 6-month follow-up compared between conditions while controlling for baseline nicotine levels. Second hand smoke (SHS) exposure based on objective monitoring of SHS in each household (in the kitchen and TV room) over a 7-day period. A small, lightweight (16 gram) passive nicotine monitor used to measure exposure to nicotine.

Trial Locations

Locations (1)

M D Anderson Cancer Center; 🇺🇸 Houston, Texas, United States