Motivating Smokers--Reduce Child Environmental Tobacco Smoke Exposure

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00005396
Recruitment Status : Completed
First Posted : May 26, 2000
Last Update Posted : February 18, 2016
Information provided by:
National Heart, Lung, and Blood Institute (NHLBI)

Brief Summary:
To evaluate the efficacy of a motivational intervention designed to reduce children's exposure to environmental tobacco smoke in the household and to increase parental motivation towards smoking cessation.

Condition or disease
Lung Diseases

Detailed Description:


The study tested the hypothesis that motivational intervention would yield greater reduction in smoking-related indices, compared to a usual care comparison condition. The study also predicted that the motivational intervention would differentially impact on cognitive and behavioral mediating mechanisms that accelerate behavior change and maintenance. Finally, the study tested the hypothesis that the motivational intervention would yield greater reduction in household exposure to environmental tobacco smoke (ETS), and therefore would also result in a significantly reduced number of children's respiratory illnesses.


This study utilized a community health center that served a low SES population in Rhode Island. The population was approximately 40 percent Hispanic and 45 percent Caucasian. Subjects were randomized to two intervention conditions:(1) a motivational intervention, that utilized self-help, telephone counselor calls, and motivational interviewing to provide feedback about children's health status and household concentrations of nicotine; (2) usual care, which included provision of self-help materials only. A repeated measures design was used (baseline, 3- and 6-month follow-ups). Outcome measures included household nicotine concentrations, movement through the stages of readiness to change, smoking cessation attempts, point-prevalence abstinence rates, and children's health status.

Several important public health priorities for research in lung health and prevention were targeted in this study, including: (1) reduction of ETS exposure among children from low income families, a group that has had a particularly high prevalence of chronic ETS exposure;. (2) development and evaluation of an intervention that was specifically tailored to match the characteristics of smokers who were low in motivation to quit smoking, a group that constituted 80 percent of the lower SES smoking population, yet that had been largely ignored in smoking research; (3) smoking intervention with an underserved, low-income and ethnic population that had poor access to standard approaches to smoking cessation and a particularly high smoking prevalence (household smoking prevalence = 60 percent); and (4) assessment of the impact of reductions in household ETS exposure on the respiratory health of children in the context of a longitudinal study.

The study completion date listed in this record was obtained from the "End Date" entered in the Protocol Registration and Results System (PRS) record.

Study Type : Observational
Study Start Date : September 1994
Actual Study Completion Date : August 1999

Information from the National Library of Medicine

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Ages Eligible for Study:   up to 100 Years   (Child, Adult, Senior)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   No
No eligibility criteria

Publications: Identifier: NCT00005396     History of Changes
Other Study ID Numbers: 4304
R01HL054351 ( U.S. NIH Grant/Contract )
First Posted: May 26, 2000    Key Record Dates
Last Update Posted: February 18, 2016
Last Verified: April 2002

Additional relevant MeSH terms:
Lung Diseases
Respiratory Tract Diseases