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Addict Behav. 2019 Nov;98:106052. doi: 10.1016/j.addbeh.2019.106052. Epub 2019 Jul 15.

An electronic, smart lighter to measure cigarette smoking: A pilot study to assess feasibility and initial validity.

Author information

1
Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA. Electronic address: tomko@musc.edu.
2
Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA.
3
24K Data, San Francisco, CA, USA.
4
Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA; Department of Public Health Sciences, Medical University of South Carolina, Charleston, SC, USA; Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, USA.
5
Department of Psychiatry, University of Pittsburgh Medical Center, Pittsburgh, PA, USA.
6
Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA; Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, USA; Department of Neuroscience, Medical University of South Carolina, Charleston, SC, USA.
7
Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA; Department of Health Sciences and Research, Medical University of South Carolina, Charleston, SC, USA.

Abstract

Understanding variability in smoking patterns may inform smoking cessation interventions. Retrospective reports of cigarettes smoked per day may be biased and typically do not provide temporal precision regarding when cigarettes are smoked. However, real-time, user-initiated tracking, such as logging each time a cigarette is smoked, can be burdensome over long time frames. In this study, adult, non-treatment seeking daily smokers (N = 22) used an electronic, smart lighter to light and timestamp cigarettes for 14 days. Participants reported number of cigarettes smoked per day (CPD) via a mobile device (daily diary) and retrospectively reported CPD at the end of the study using the Timeline Followback (TLFB). Self-reported lighter satisfaction and adherence varied with 68% of participants reporting that they liked using the lighter and participants reporting using the lighter for 92% of cigarettes smoked, on average. Lighter-estimated CPD did not differ from daily diary-estimated CPD, but was significantly lower than TLFB estimates. The lighter resulted in greater day-to-day variability relative to other methods and fewer rounded cigarette counts (digit bias) relative to the TLFB. The lighter appears to be feasible for capturing data on smoking patterns in daily smokers. Though false positive cigarettes are likely low, additional technologies that augment data captured from the lighter may be necessary to reduce false negatives (missed cigarettes) and alternative lighter designs may appeal more to certain smokers.

KEYWORDS:

Ambulatory assessment; Cigarettes; Daily diary; Methodology; Technology; Timeline followback

PMID:
31415971
PMCID:
PMC6708757
[Available on 2020-11-01]
DOI:
10.1016/j.addbeh.2019.106052

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