Comparison of Quit Rates and Predictors in Korean Inpatient and Residential Smoking Cessation Programs: A Secondary Data Analysis of Data from the National Smoking Cessation Services

초록

Purpose: Inpatient and residential smoking cessation programs in Korea have demonstrated relatively high quit rates, with residential programs consistently outperforming inpatient ones. However, simple comparisons are limited by differences in participant characteristics and eligibility criteria. This study aimed to determine whether program type independently influences quit rates, using both self-reported and biochemically verified outcomes.Methods: This descriptive study conducted a secondary analysis of data from 17,290 participants enrolled in national smoking cessation services across 18 regional tobacco control centers (2018-2020). Data included demographics, smoking history, and program participation. Quit status at 4 weeks, 12 weeks, and 6 months was assessed through self-report and biochemical verification. Multivariate logistic regression was used to evaluate the independent effect of program type on 6-month quit outcomes.Results: The mean age of participants was 54.8 ± 12.0 years, and 14.5% were women. At 6 months, self-reported quit rates ranged from 16.5% to 34.1% for the inpatient program and from 26.0% to 62.8% for the residential program. Biochemically verified rates ranged from 8.6% to 19.0% (inpatient) and 11.9% to 46.7% (residential). After adjusting for confounders, program type was significantly associated with self-reported quitting (aOR = 0.80; 95% CI = 0.72-0.89; p < .001), but not with biochemically verified quitting (aOR = 0.91; 95% CI = 0.82-1.01; p = .082).Conclusion: Although residential programs showed higher self-reported quit rates, program type did not predict verified cessation. This suggests differences in participant characteristics may drive outcomes. Further research should identify effective, evidence-based components for sustained quitting.

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