Dataset Information

Randomised controlled trial of real-time feedback and brief coaching to reduce indoor smoking.

ABSTRACT:

Background

Previous secondhand smoke (SHS) reduction interventions have provided only delayed feedback on reported smoking behaviour, such as coaching, or presenting results from child cotinine assays or air particle counters.

Design

This SHS reduction trial assigned families at random to brief coaching and continuous real-time feedback (intervention) or measurement-only (control) groups.

Participants

We enrolled 298 families with a resident tobacco smoker and a child under age 14.

Intervention

We installed air particle monitors in all homes. For the intervention homes, immediate light and sound feedback was contingent on elevated indoor particle levels, and up to four coaching sessions used prompts and praise contingent on smoking outdoors. Mean intervention duration was 64 days.

Measures

The primary outcome was 'particle events' (PEs) which were patterns of air particle concentrations indicative of the occurrence of particle-generating behaviours such as smoking cigarettes or burning candles. Other measures included indoor air nicotine concentrations and participant reports of particle-generating behaviour.

Results

PEs were significantly correlated with air nicotine levels (r=0.60) and reported indoor cigarette smoking (r=0.51). Interrupted time-series analyses showed an immediate intervention effect, with reduced PEs the day following intervention initiation. The trajectory of daily PEs over the intervention period declined significantly faster in intervention homes than in control homes. Pretest to post-test, air nicotine levels, cigarette smoking and e-cigarette use decreased more in intervention homes than in control homes.

Conclusions

Results suggest that real-time particle feedback and coaching contingencies reduced PEs generated by cigarette smoking and other sources.

Trial registration number

NCT01634334; Post-results.

SUBMITTER: Hovell MF

PROVIDER: S-EPMC6697236 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Randomised controlled trial of real-time feedback and brief coaching to reduce indoor smoking.

Hovell Melbourne F MF Bellettiere John J Liles Sandy S Nguyen Benjamin B Berardi Vincent V Johnson Christine C Matt Georg E GE Malone John J Boman-Davis Marie C MC Quintana Penelope J E PJE Obayashi Saori S Chatfield Dale D Robinson Robert R Blumberg Elaine J EJ Ongkeko Weg M WM Klepeis Neil E NE Hughes Suzanne C SC

Tobacco control 20190215 2

<h4>Background</h4>Previous secondhand smoke (SHS) reduction interventions have provided only <i>delayed</i> feedback on reported smoking behaviour, such as coaching, or presenting results from child cotinine assays or air particle counters.<h4>Design</h4>This SHS reduction trial assigned families at random to brief coaching and continuous real-time feedback (intervention) or measurement-only (control) groups.<h4>Participants</h4>We enrolled 298 families with a resident tobacco smoker and a chil ...[more]

PMID: 30770436

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Dataset Information

Randomised controlled trial of real-time feedback and brief coaching to reduce indoor smoking.

Background

Design

Participants

Intervention

Measures

Results

Conclusions

Trial registration number

Publications

Randomised controlled trial of real-time feedback and brief coaching to reduce indoor smoking.

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