title: [Enviromental factors related to depressive disorders].
abstract: BACKGROUND
  As a result of their high prevalence, mayor depressive disorder single episode (MDDSE); major depressive disorder recurrent episodes (MDDREC); and dysthymia are considered an important public health problem. The objective of this paper was to identify and correlate environmental factors in patients with MDDSE, MDDREC and dysthymia.
  
  
  METHODS
  121 patients from the Instituto Mexicano del Seguro Social's Subzone General Hospital of San Andres Tuxtla, at Veracruz, were questioned by history with the risk variables.
  
  
  RESULTS
  16 of them were diagnosed with MDDREC, 72 with MDD and 33 with dysthymia; in all of those cases, females prevailed. Depressive disorders were observed more frequently in people over 40 years, married, with medium or low educational level, with dysfunctional family environment, victims of family violence and who were the middle siblings. The main comorbidities that arose were gastrointestinal disorders, obesity and hypertension.
  
  
  RESULTS
  16 of them were diagnosed with MDDREC, 72 with MDD and 33 with dysthymia; in all of those cases, females prevailed. Depressive disorders were observed more frequently in people over 40 years, married, with medium or low educational level, with dysfunctional family environment, victims of family violence and who were the middle siblings. The main comorbidities that arose were gastrointestinal disorders, obesity and hypertension.
  
  
  CONCLUSIONS
  The main risk factors identified for developing depressive disorders were: being female, over 40 years old and being married. The differences obtained in this study, if it is compared with others, are probably due to sample size, selection criteria and ethnic origin.
authors.affiliation: Hospital General de Subzona 33, Instituto Mexicano del Seguro Social, Delegación Veracruz Norte, San Andrés Tuxtla, Veracruz, México. catalinahb@hotmail.com.
authors.forename: Catalina Teresa
authors.initials: CT
authors.lastname: Hernández-Benítez
authors.forename: Alfonso
authors.initials: A
authors.lastname: García-Rodríguez
authors.forename: Evelia
authors.initials: E
authors.lastname: Leal-Ugarte
authors.forename: Valeria
authors.initials: V
authors.lastname: Peralta-Leal
authors.forename: Jorge
authors.initials: J
authors.lastname: Durán-González
mesh_terms: D000328:Adult; D003865:Major Depressive Disorder / Q000209:etiology*; D019263:Dysthymic Disorder / Q000209:etiology*; D004777:Environment; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D055815:Young Adult
keywords: Depressive disorder; Enviromental factors; Risk factors