This study was done to analyze the changes in smokers' subjectivity about smoking before and after participation in a 5-day hospitalized smoking cessation program.

Q-methodology, which provides a scientific method on subjectivity, was applied.

Nine types of subjectivity changes about smoking were identified; Type I, Nicotine craving → Confident of self control for smoking; Type II, Nicotine craving → Cognition of the link between habituation and smoking, Type III, Nicotine craving → Nicotine craving, Type IV, smoking as a social behavior → Cognition of the link between habituation and smoking, Type V, smoking as a social behavior → Motive to turn away from being addicted to smoking to being healthy, Type VI, Habitual smoking → Confident of self control for smoking, Type VII, Habitual smoking → Cognition of the link between habituation and smoking, Type VIII, Habitual smoking → Motive to turn away from being addicted to smoking to being healthy and Type IX, Denial of the negative effects of smoking → Confident of self control for smoking

The types of changes in smokers' subjectivity before and after the smoking cessation program in this study suggest a better tailored intervention for individual smokers. The types of changes on smokers' subjectivity provide insight about which factors of the interventions for smoking cessation are especially valued for a particular group of smokers.