Electronic Theses and Dissertations





Document Type


Degree Name

Doctor of Philosophy


Public Health

Committee Chair

Kenneth Ward

Committee Member

Latrice Pichon

Committee Member

Satish Kedia

Committee Member

George Relyea

Committee Member

Leslie Robinson


Survivors of disasters often experience severe psychological symptoms and disorders, including depression, anxiety, post-traumatic stress disorder (PTSD), and report using psychoactive substances, such as alcohol, marijuana, and cigarettes. This dissertation examined whether depression severity and PTSD were pathways to postdisaster smoking and alcohol consumption using a representative cohort of adult cigarette smokers from Memphis, Tennessee and New Orleans, Louisiana nine and eighteen months after Hurricane Katrina (N=2004). Results from path analyses showed that disaster exposure increased depression and posttraumatic stress nine months after Hurricane Katrina, and the effect persisted across time for depression. Disaster exposure also increased the risk for smoking relapse and increased daily cigarette intake and nicotine dependence. Depression and posttraumatic stress seemed to be pathways for smoking relapse and nicotine dependence among individuals who reported hurricane-related trauma. These pathways were further affected by pre-existing mental health; those who reported many days spent with poor mental health, compared to those who reported fewer days, before Hurricane Katrina had higher depressive symptoms after Hurricane Katrina and subsequently had an increased risk for smoking relapse and nicotine dependence. There was very little evidence that disaster exposure affected alcohol consumption nine and eighteen months after Hurricane Katrina. Overall, these findings should help researchers and public health professionals, who are ever more frequently responding to the mental and behavioral health consequences of disasters worldwide, by providing beneficial information to improve smoking cessation and relapse prevention strategies for this important and understudied population.


Data is provided by the student.

Library Comment

Dissertation or thesis originally submitted to the local University of Memphis Electronic Theses & dissertation (ETD) Repository.