Post-traumatic stress disorder associated with alcohol and drug abuse and dependence: study of a sample of household residents in the São Paulo Metropolitan Area / Transtorno de estresse pós-traumático associado ao abuso e dependência de álcool e drogas: estudo de uma amostra da população da Região Metropolitana de São Paulo

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

INTRODUCTION: Post-Traumatic Stress Disorder (PTSD) is characterized by the development of specific symptoms after an intense traumatic event that affects the person directly or indirectly. The lifetime prevalence of PTSD ranges from 1.4% to 11.2%. Women are more vulnerable than men, although men experience more lifetime traumatic events. Other than causing a number of problems in someone´s life, there are high comorbidity rates between PTSD and substance abuse and dependence (SAD), which in turns is associated with worse psychopathological conditions, lower levels of social functioning, more frequent utilization of health care services and worse treatment outcomes. OBJECTIVES: to examine the distribution of traumatic events and the prevalence of PTSD and alcohol/drug abuse and dependence; to examine the distributions of PTSD cases across different types of traumatic events and to investigate the conditional risk of PTSD in females and males; to examine the comorbidity between PTSD and SAD, and to verify the associations between number and different categories traumatic events and SAD when controlling for PTSD. METHODS: cross-sectional study with a probabilistic sample of household residents in the Sao Paulo Metropolitan Area (n=2.942). The study is a subproject of the São Paulo Megacity, a counterpart of an international initiative coordinated by the World Health Organization (World Mental Health Survey). The analysis were based in the substance abuse and PTSD sections of the Composite International Diagnostic Interview (CIDI), created to generate diagnoses of the CID-10 and the DSM-IV. The statistical analyses were calculated by the Statistical Analysis System (SAS) software. Prevalence of the diagnosis and their standard errors were calculated, as well as the traumatic events that led to PTSD cases and the conditional risk of PTSD. A series of simple logistic regressions were performed to examine the comorbidity between PTSD and SAD. Multiple regressions were conducted to examine the associations between number and categories of traumas and SUD after controlling for PTSD. RESULTS: lifetime PTSD prevalence was 3.2% (SE=0.2) and last year´s prevalence was 1.6% (SE=0,2). 4.6% of women versus 1.6% of men had lifetime PTSD prevalence (OR 3,0; CI 95% 1.8-4.9); among the PTSD group, the most frequent traumatic event associated with the disorder was sudden unexpected death of relative or/friend ;in females,sexual assault and rape were associated with the highest conditional risk of PTSD and and rape were associated with the highest conditional risk of PTSD in males; comorbidity between PTSD and SAD was found in the sample, however there were differences between males and females related to the pattern of consumption (dependence and abuse) and type of substance (alcohol and drug); in the multiple regression models, number of traumatic events and interpersonal violence were strongly associated with SAD. CONCLUSIONS: comorbidity between PTSD and SAD was found in the sample, and alcohol abuse and number of traumatic events and well as the category of events involving interpersonal violence were particularly important in the association with PTSD

ASSUNTO(S)

comorbidity comorbidade alcoolismo violência transtorno de estresse pós-traumático alcoholism substance-related disorders drogas ilícitas epidemiologia epidemiology transtornos relacionados ao uso de substâncias post-traumatic stress disorder estudos transversais cross-sectional studies violence street drugs

ACESSO AO ARTIGO

Documentos Relacionados