title: [Relation Between Stress During Pregnancy and Spontaneous Preterm Birth].
abstract: BACKGROUND
  Preterm birth occurs before 37 completed weeks, its causes are multifactorial and vary according to the gestational age, ethnicity and geographical context. Although several medical/social factors have been clearly identified, over 50% of cases are unknown or unclear; however, psychopathological components emerge as potentially important risk factors.
  
  
  OBJECTIVE
  To determine the relationship between the presence of stress during pregnancy and spontaneous preterm birth.
  
  
  METHODS
  Through a study of cases and controls in a level III hospital, with a sample of 360 patients during the period from March to November of 2013, where sociodemographic characteristics were collected. In addition, they were applied scales social adjustment, coping strategies and social support. Logistic regression models were developed; psychological, biological and social. Based on the significant variables in each of these generated a final one.
  
  
  RESULTS
  The final model was found that stress during pregnancy increases the odds of spontaneous preterm birth 1.91 times (adjusted OR=2.91; 95%CI, 1.67-5.08; P<.05). Other significant variables were: history of preterm delivery, unplanned pregnancy, no emotional support, rural residence, inadequate prenatal care and non-stable partner.
  
  
  CONCLUSIONS
  The findings support the hypothesis that stress during pregnancy is associated with spontaneous preterm delivery.
authors.affiliation: Esp. Ginecólogia y Obstetricia, Magister Epidemiologia, Profesor universitario, Universidad del Cauca, Colombia. Electronic address: roberthni@yahoo.com.
authors.forename: Roberth Alirio
authors.initials: RA
authors.lastname: Ortiz Martínez
authors.affiliation: Esp. Psiquiatría, Magister Epidemiologia, Profesor Universitario, Universidad del Valle, Colombia.
authors.forename: Alejandro
authors.initials: A
authors.lastname: Castillo
mesh_terms: D000293:Adolescent; D000328:Adult; D016022:Case-Control Studies; D005260:Female; D006801:Humans; D016015:Logistic Models; D011247:Pregnancy; D047928:Premature Birth / Q000209:etiology* / Q000523:psychology*; D012307:Risk Factors; D013315:Stress, Psychological / Q000150:complications*; D055815:Young Adult
keywords: Apoyo social; Estrés y embarazo; Eventos de vida; Life events; Parto pretérmino; Preterm labor; Social support; Stress and pregnancy