237469 A Randomized, Controlled Trial to Reduce Passive Smoking Exposure among Non-smoking Pregnant Women, in Sichuan Province, China

Tuesday, November 1, 2011

Lian Yang , Department of Health Economics, School of Public Health and Administration, Chengdu University of Traditional Chinese Medicine, China, Chengdu, China
Zhengzhong Mao , Huaxi School of Public Health, Sichuan University, Chengdu, China
Teh-wei Hu, PhD , School of Public Health, University of California at Berkeley, Berkeley, CA
Anita Lee, DrPH , Center for International Tobacco Control, Public Health Institute, Berkeley, CA
Abstract Objective: Passive smoking, which has been linked to increased risk of cancer and other diseases. The study was aimed to determine whether a motivational intervention for non-smoking pregnant women to build smoke-free home rules will lead to reduced passive smoking exposure. Methods: A total of 186 non-smoking pregnant women with smoking husbands recruited from eight district/county Women and Children's hospitals were divided randomly into control (N=95) and intervention group (N=91). The intervention included a series of motivational and patient communication activities, a resource booklet, clinician counseling, telephone hotline and regular telephone counseling. Self-administered questionnaire and nicotine concentrations in hair around the occipital bone were used to measure results. Hair nicotine concentrations were tested at baseline and one month post-intervention. Difference-in-differences (DID) approach and bias-corrected matching estimator was conducted to examine the efficacy of the intervention. Results: More non-smoking pregnant women for intervention group reduced the self-reported passive smoking exposure(52.5% versus 29.3%, p<0.001). The geometric mean of nicotine concentration in the hair decreased by 1.58g/g for intervention group and increased by 1.26g/g for control group. The hair nicotine concentration was found statistically significant difference between the intervention group and control group by DID (p<0.001). Conclusion: These findings demonstrate that there is a need to give emphasis to passive smoking in the home environment and enforcing smoke-free home rules is a strategy for protecting non-smoking pregnant women and their fetuses. Key word: Pregnant women, Passive smoking, Intervention

Learning Areas:
Administer health education strategies, interventions and programs
Public health or related public policy
Social and behavioral sciences

Learning Objectives:
Participants should be able to: 1. Provide information about a model for intervention which was designed with the help of the intended beneficiaries to reduce passive smoking exposure during the pregnancy. 2. Discuss and explain the objectives, advantages and limitations of hair nicotine concentrations to estimate the exposure to passive smoking. 3. Identify current issues, trends and advances in outcomes research and tobacco-control policy.

Presenting author's disclosure statement:

Qualified on the content I am responsible for because: I am qualified to present because I oversee programs such as passive smoking prevention and tobacco-control economics programs.
Any relevant financial relationships? No

I agree to comply with the American Public Health Association Conflict of Interest and Commercial Support Guidelines, and to disclose to the participants any off-label or experimental uses of a commercial product or service discussed in my presentation.