| Summary: | Introduction
Few studies have examined the effect of feedback based on oralmalodor
measurements on the motivation to quit smoking. Therefore, this study
examined whether oral-malodor measurements were associated with the intention
to quit smoking.
Methods
This retrospective, uncontrolled before–after study invited smokers to
a workplace health event in 2019 and 2020 to motivate them to quit smoking.
They attended seminars on oral health and smoking cessation aids, and then
underwent respiratory function and oral-malodor measurements using exhaled
and oral cavity air, respectively. Intention to quit smoking was evaluated by
answers to questions regarding the intention to quit in the next 1 or 6 months
in questionnaires collected before and after the event. This study analyzed
241 men aged 20–54 years (mean: 33.2 ± 10.5) to examine factors associated
with the intention to quit in multivariable logistic regression analyses for age,
tobacco type (cigarettes and heated-tobacco products), and category of tobacco
consumption.
Results
Before the event, 8.7%, 17.0%, and 74.3% of smokers had intended to quit
in the next month, the next six months, or had no intention to quit, respectively.
After the event, the respective percentages were 17.8%, 26.6%, and 55.6%. A
higher methyl mercaptan concentration, a volatile sulfide component of oral
malodor, was significantly associated with the intention to quit in the next month
(adjusted odds ratio, AOR=4.24; 95% CI: 1.52–11.8, p=0.006). The participants
with higher daily tobacco consumption were less likely to acquire the intention
to quit in the next six months (AOR=0.37; 95% CI: 0.15–0.92, p=0.032). Other
variables, such as lung age deficit, exhaled CO concentration, and hydrogen
sulfide concentration (another component of oral malodor), were not significantly
associated.
Conclusions
Oral-malodor measurement feedback may help motivate men to quit
smoking in the next 1 month rather than in the next six months.
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