Predictors of transition in different stages of smoking: a longitudinal study.

Background: We investigated longitudinally the prevalence of smoking according to three stages of smoking (never smoking, experimenting the smoking, and regular smoking), the rates of transition from one stage to another one, and determinant predictors of transition through these stages of smoking.

Methods: Of all 10(th) grade students in Tabriz, 1785 students were randomly selected and assessed twice, with a 12-month interval, with respect to the changes of stage. The predictor variables were measured when the students were in the 10(th) grade.

High prevalence of depression among Iranian patients with first onset pseudoseizures.

Background: Pseudoseizures are common and can pose a significant diagnostic and therapeutic challenge. Exploring the role of psychiatric disorders can be helpful. The aim of this study was to evaluate depression in patients with first onset pseudoseizure.

Effectiveness of fluoxetine on various subtypes of obsessive-compulsive disorder.

Background: Obsessive-compulsive disorder typically begins early in life and has a chronic course. Despite the need for long-term treatment, the information about therapeutic effect on different clinical subtypes is limited.

Methods: Consecutive outpatients with obsessive-compulsive disorder were evaluated for response to a two-month fluoxetine therapy course by Yale-Brown obsessive-compulsive scale according to the clinical subtype of the disease.