Secondhand smoke exposure (SHSe) is a significant health risk, especially to young children. More than 50 percent of children's SHSe occurs at home and children in low-income households are more likely to be exposed to SHS. Thus, home-based interventions are needed to protect children from SHSe. This is the first efficacy study to test whether children's home SHSe can be reduced by using innovative SHS particle monitors to provide real-time feedback to household residents plus brief advice/praise. This study will test the efficacy of immediate feedback and brief advice/praise on low-income families'ability to reduce children's exposure to nicotine, as measured by cotinine assays, reduce smoking in the home, and establish home smoking bans. Learning theory and pilot data suggest that real-time feedback from the monitor plus brief advice will prompt and reinforce SHSe reduction behaviors. Four hundred families from Women, Infants, and Children (WIC) programs in San Diego, California will be recruited. Households will be randomly assigned to an experimental group that receives continuous real-time feedback from a SHS particle monitor plus feedback-related brief advice/praise to reduce their child's exposure, or to a usual care control group where the particle monitor delivers no feedback. During the intervention phase, monitors in households of the experimental group will produce warning lights and beeps when SHS is detected. The primary specific aims are to: 1) Determine the differential group change in SHSe levels, as measured by child cotinine assays, due to real-time monitor feedback and brief advice;2) Determine the differential group change in the establishment of home smoking bans;and 3) Validate differential change in particle measures of SHSe using nicotine dosimeters and child urine cotinine assays. The exploratory aims are to: determine theoretical moderators (e.g., child's health) of the effect of brief advice plus feedback;assess the effects of theoretical mediators (e.g., establishment of home smoking bans and other social contingencies) of change in SHSe;explore the dynamic nature of SHSe by examining the continuous particle monitor records over months to identify social contexts and micro- environments in the home as precise targets for intervention (e.g., smoking location, nonsmoker locations, and social interactions while smoking);assess the differential changes in tobacco use and SHSe by racial/ethnic group and by single v two-parent families to increase understanding of disparities for tobacco control;and obtain suggestions from families to enhance future use of the monitors. This is also the first large-scale test of a new technology in residential tobacco control, where real-time and telemetry feedback to investigators will both enable immediate feedback from light and sound alerts to families and inform investigators of smoking events or reduction in smoking events that warrant advice or praise. Thus, this application opens a new direction for future innovative studies using novel technology to advance reduction of SHSe in a range of micro-environments.

Public Health Relevance

Secondhand smoke exposure (SHSe) is a significant health hazard for adults and children, especially the medically vulnerable. There is no risk-free level of SHSe and cumulative exposure can lead to pulmonary diseases and Sudden Infant Death Syndrome (SIDS). Millions of U.S. children are exposed at home. This is the first study to test an innovative particle monitor to provide real-time feedback (lights/sounds) to encourage parents to reduce young children's SHSe in their home.

Agency
National Institute of Health (NIH)
Institute
National Heart, Lung, and Blood Institute (NHLBI)
Type
Research Project (R01)
Project #
5R01HL103684-04
Application #
8661242
Study Section
Psychosocial Risk and Disease Prevention Study Section (PRDP)
Program Officer
Bonds, Denise
Project Start
2011-08-11
Project End
2016-04-30
Budget Start
2014-05-01
Budget End
2015-04-30
Support Year
4
Fiscal Year
2014
Total Cost
Indirect Cost
Name
San Diego State University
Department
Public Health & Prev Medicine
Type
Graduate Schools
DUNS #
City
San Diego
State
CA
Country
United States
Zip Code
92182
Kassem, Nada O F; Kassem, Noura O; Liles, Sandy et al. (2018) Levels of Urine Cotinine from Hookah Smoking and Exposure to Hookah Tobacco Secondhand Smoke in Hookah Lounges and Homes. Int J High Risk Behav Addict 7:
Hughes, Suzanne C; Bellettiere, John; Nguyen, Benjamin et al. (2018) Randomized Trial to Reduce Air Particle Levels in Homes of Smokers and Children. Am J Prev Med 54:359-367
Berardi, Vincent; Carretero-González, Ricardo; Klepeis, Neil E et al. (2018) Computational model for behavior shaping as an adaptive health intervention strategy. Transl Behav Med 8:183-194
Klepeis, Neil E; Bellettiere, John; Hughes, Suzanne C et al. (2017) Fine particles in homes of predominantly low-income families with children and smokers: Key physical and behavioral determinants to inform indoor-air-quality interventions. PLoS One 12:e0177718
Kassem, Nada O F; Kassem, Noura O; Liles, Sandy et al. (2017) Urinary NNAL in hookah smokers and non-smokers after attending a hookah social event in a hookah lounge or a private home. Regul Toxicol Pharmacol 89:74-82
Northrup, Thomas F; Matt, Georg E; Hovell, Melbourne F et al. (2016) Thirdhand Smoke in the Homes of Medically Fragile Children: Assessing the Impact of Indoor Smoking Levels and Smoking Bans. Nicotine Tob Res 18:1290-8
Northrup, Thomas F; Jacob 3rd, Peyton; Benowitz, Neal L et al. (2016) Thirdhand Smoke: State of the Science and a Call for Policy Expansion. Public Health Rep 131:233-8
Northrup, Thomas F; Khan, Amir M; Jacob 3rd, Peyton et al. (2016) Thirdhand smoke contamination in hospital settings: assessing exposure risk for vulnerable paediatric patients. Tob Control 25:619-623
Rosen, Laura; Zucker, David; Hovell, Melbourne et al. (2015) Feasibility of Measuring Tobacco Smoke Air Pollution in Homes: Report from a Pilot Study. Int J Environ Res Public Health 12:15129-42
Kassem, Nada O F; Jackson, Sheila R; Boman-Davis, Marie et al. (2015) Hookah Smoking and Facilitators/Barriers to Lounge Use among Students at a US University. Am J Health Behav 39:832-48

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