摘要：The purpose of this study was to identify determinants of smoking cessation in a sample of male Portuguese Californians using data from the Portuguese Study, a dissertation thesis study with a cross-sectional design that assessed 141 smokers and 67 ex-smokers of Portuguese origin residing in Southern and Central California recruited from Portuguese community clubs. Socio-demographics, acculturation, health beliefs, stress, and social support for smoking cessation were assessed and measured in this population. Bivariate predictors of becoming an ex-smoker were being married (p=.01), having a high support index for not smoking (p<.01), having a nonsmoking close friend (p<.01), perception that doctors control health (p=.02), disagreement with the belief that health occurs by chance (p=.01), and belief that it is easy to stop smoking (p<.01). In a multivariate analysis - after controlling for demographic variables, acculturation, and stress variables - ex-smoking status remained associated with having a high support index for not smoking (p<.01), having a nonsmoking close friend (p=.05), disagreement with the belief that health occurs by chance (p<.01) and belief that it is easy to stop smoking (p<.01). Conclusion: Social support, the belief that health does not occur by chance and self-efficacy were associated with being an ex-smoker in Portuguese Californian males. Smoking cessation programs in this population should address these determinants
