Prevalence of post-traumatic stress disorder among Lithuanian breast cancer patients and its risk factors

Introduction: Post-traumatic stress disorder (PTSD) is more common among oncology patients than in the general population. The purpose of this study was to examine the prevalence of PTSD symptoms among Lithuanian patients with breast cancer and to analyse its clinical, psychosocial and demographic risk factors. Methods: Women with T1-T3/N0N3/M0 stages of breast cancer took part in this study. There were two phases of the study: the first, before breast surgery (N = 421) and the second, a year after (N = 188). Women were given the following questionnaires: an Impact of Event Scale-Revised (IES-R); Beck's Depression Inventory, second edition (BDI-II); and the Vrana-Lauterbach Traumatic Event Scale, Civilian version (TEQ-C). Results: The prevalence of PTSD symptoms significantly decreased over the year. Before surgery, women who were employed, had experienced emotionally traumatic events during their lifespan and were dissatisfied with delivery of the information about the disease had more PTSD symptoms. One year later, those who had undergone breast-saving surgery, were living in a partnership, had a higher education, were unemployed and had experienced severe traumatic events during the previous year had more PTSD symptoms. The IES-R questionnaire's estimates correlated with BDI-II estimates. Conclusions: Health care professionals, who work with cancer patients, are recommended to pay closer attention to the stress patients' experience, especially in those more vulnerable women who have several of the aforementioned risk factors. Targeted training for doctors, during which they could learn how to report the diagnosis to oncology patients would be of great benefit.