Changing Exposure Perceptions: A Randomized Controlled Trial of an Intervention with Smoking Parents

Vicki Myers, Shoshana Shiloh, David M Zucker, Laura J Rosen, Vicki Myers, Shoshana Shiloh, David M Zucker, Laura J Rosen

Abstract

Children who live with smokers are at risk of poor health, and of becoming smokers themselves. Misperceptions of the nature of tobacco smoke exposure have been demonstrated among parents, resulting in continued smoking in their children's environment. This study aimed to change parents' perceptions of exposure by providing information on second- and third-hand exposure and personalised information on children's exposure [NIH registry (NCT02867241)]. One hundred and fifty-nine families with a child < 8 years and at least one smoking parent were randomized into intervention (69), control (70), and enhanced control (20) groups. Reported exposure, parental smoking details, and a child hair sample were obtained at the start of the study and 6-8 months later. Parental perceptions of exposure (PPE) were assessed via a questionnaire. The intervention consisted of motivational interviews, feedback of home air quality and child's hair nicotine level, and information brochures. PPE were significantly higher at the study end (94.6 ± 17.6) compared to study beginning (86.5 ± 19.3) in intervention and enhanced control groups (t(72) = -3.950; p < 0.001). PPE at study end were significantly higher in the intervention group compared to the regular control group (p = 0.020). There was no significant interaction between time and group. Parallel changes in parental smoking behaviour were found. Parental perceptions of exposure were increased significantly post intervention, indicating that they can be altered. By making parents more aware of exposure and the circumstances in which it occurs, we can help parents change their smoking behaviour and better protect their children.

Keywords: RCT; children; intervention; motivational interviewing; parental smoking; perceptions; secondhand smoke; tobacco smoke exposure.

Conflict of interest statement

The authors declare no conflict of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results.

Figures

Figure 1
Figure 1
Study protocol by group.
Figure 2
Figure 2
PPE over time across study groups. * denominates significant difference (p < 0.05) between T1 and T2. ** denominates significant difference (p < 0.05) between intervention and regular control at T2. Error bars show standard deviation.

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Source: PubMed

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