INTRODUCTION: Several studies indicate that panic disorder and tobacco smoking are associated, and some authors hypothesize that smoking increases the risk of panic attacks and panic disorder. The objective of this study is to investigate whether smokers have a more severe form of panic disorder than non-smokers. METHOD: Sixty-four patients already in treatment at the Laboratory of Panic and Respiration (Instituto de Psiquiatria da Universidade Federal do Rio de Janeiro) with panic disorder as established by the Diagnostic and Statistical Manual of Mental Disorders, fourth edition, were divided into groups of smokers and non-smokers. Both groups were compared regarding sociodemographic data, comorbidities and clinical status severity. RESULTS: There was no statistically significant difference between the two groups regarding severity; however, prevalence of depression was significantly higher in the smoker group than in non-smokers (p = 0.014). CONCLUSION: This study did not indicate that smokers have a more severe form of panic disorder, but smoking and comorbid depression were associated.
Panic disorder; agoraphobia; smoking; depressive disorder
