Introduction:
Intervention based on the social support-based to quit smoking was essential for successful cessation.

Objectives:
The purpose of this study was to examine the effects of the social support-based smoking cessation program applying the Bacho mode.

Methods:
The Bacho model consisted of three processes of operation. The first process was to explore information relating to smoking in the community and smokers by modeling. The second process was to build the perception on self-efficacy and outcome expectation to quit smoking. The last process was the support-based programs which conducted in smoking cessation clinic services of Bacho district. The sample was divided into 2 groups comprised of 71 the community intervention group and 56 of using medical treatment group. Data were collected by using a general information questionnaire, a quit smoking behavior questionnaire, a Fagerstrom Test of Nicotine Dependence and the Motivational Interviewing. Interview data were collected by questionnaires in three phases, pre-intervention phase, post-intervention phase on the 3rd month, and follow up phase on the 6th month. Data analyses by using percentage, mean and standard deviation.

Results:
The results revealed that the group of using medical treatment had a higher score on nicotine dependence than the community intervention group. The main reasons to quit smoking of using medical treatment group were regarding to the health problem and being the best model. Whereas, the community intervention group was regarding to the health problem and the family’s request to quit smoking. The factors related with successful quit smoking of both groups were personal health situations and the perception on self-efficacy and outcome expectation to quit smoking. After completing the intervention program, 52% of the community intervention group were able to stop smoking and 49 %using the medical treatment group.

Conclusion(s):
In conclusion, the smoking cessation program applying the Bacho model. The intervention program could be applied in smoking cessation services provided in the health centers.