OBJECTIVES:

A relationship between depression and smoking has been documented; however, little attention has focused on ethnic variability in how this relationship is manifested. Thus, we examined the interaction between ethnicity and significant depressive symptoms on smoking status.

DESIGN:

A random digit dial survey (Minnesota Needs Assessment Survey) that oversampled ethnic minorities assessed demographics, smoking status, and depressive symptoms (Patient Health Questionnaire-2 [PHQ-2]). We examined the prevalence of current smoking between individuals with and without depressive symptoms within ethnic group and the interaction of depressive symptoms by ethnic group on smoking status.

RESULTS:

Of 16,981 participants, 20.8% were current smokers, and 7.7% reported significant depressive symptoms on the PHQ-2 (score ≥3). Ethnic differences were observed in smoking rates (Asians 17.2%, Latinos 19.0%, whites 20.4%, African-Americans 23.4%, American Indians 51.2%) and depressive symptoms (Asians 4.9%, Latinos 13.1%, whites 7.0%, African-Americans 19.1%, American Indians 12.5%). Depressive symptoms were associated with a higher prevalence of smoking among Whites (34.5% vs. 19.4%), African-Americans (43.6% vs. 18.9%), and American Indians (81.9% vs. 47.1%), but not among Latinos (14.5% vs. 19.7%) or Asians (19.6% vs. 17.1%). The interaction between ethnicity and depressive symptomatology on current smoking was significant (p=0.02) among Latinos relative to Whites, controlling for other demographics.

CONCLUSION:

The relationship between depressive symptoms and smoking differs by ethnicity, particularly for Latinos. Understanding these differences may contribute to the development of culturally specific interventions.