title: [Maternal risk factors associated to stillbirth in a public hospital at West of Mexico].
abstract: BACKGROUND
  Mortality rates in preterm births and stillbirth are high.
  
  
  OBJECTIVE
  To identify maternal risk factors relating to stillbirth in preterm infants.
  
  
  METHODS
  We conducted a cross-sectional, analytic study of 1,022 newborns between 20 and 36 weeks of gestation, from September 2004 to August 2005. Stillbirth was defined as fetal death prior to expulsion or extraction from the mother. Data was collected prospectively by directly interviewing the pregnant women and from the medical chart. The dependent variable was stillbirth and the independent ones were the maternal risk factors. Associations were evaluated by logistic regression. RESULTS. One thousand and twenty-four (1,024) preterm births were detected in a total of 14,882 births (6.9%/year). One hundred and fifty-two (152) were stillborn and 870 were live births. The fetal mortality rate was 10.3 per 1,000 live births. The least common maternal factors associated to stillbirth included: urinary tract infection (22/152, 14% vs. 224/869, 26%, p = 0.020), PMR > 24 h (18/152, 12% vs. 172/869, 20%, p = 0.020) and cesarean delivery (24/138, 17% vs. 344/719, 48%, p < 0.001). The crude odd risk ratios for stillbirth included spontaneous preterm delivery (OR 4.38, CI95% 2.70-7.17) and deficient prenatal care (OR 2.64, CI95% 1.83-3.82). By multivariate analysis, stillbirth predictors included: spontaneous preterm delivery (OR 4.00, CI 95% 2.61-6.61) and deficient prenatal care (OR 2.54, CI 95% 1.78-3.62).
  
  
  CONCLUSIONS
  Deficient prenatal care was the only statistically significant and clinically coherent variable predicting stillbirth.
authors.affiliation: División de Pediatría y de Ginecología y Obstetricia, Nuevo Hospital Civil de Guadalajara "Dr. Juan I. Menchaca" y Departamento de Clínicas de la Reproducción Humana, Crecimiento y Desarrollo Infantil, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara. jesus.perezmolina@yahoo.com.mx
authors.forename: Jesús
authors.initials: J
authors.lastname: Pérez-Molina
authors.forename: Claudia
authors.initials: C
authors.lastname: Quezada-López
authors.forename: Guadalupe
authors.initials: G
authors.lastname: Panduro-Barón
authors.forename: Juan Francisco
authors.initials: JF
authors.lastname: Castro-Hernández
mesh_terms: D000293:Adolescent; D000328:Adult; D002585:Cesarean Section / Q000706:statistics & numerical data; D005260:Female; D005313:Fetal Death / Q000453:epidemiology; D006779:Hospitals, Public / Q000706:statistics & numerical data*; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D007235:Infant, Premature, Diseases / Q000401:mortality*; D008297:Male; D008800:Mexico; D007744:Obstetric Labor Complications / Q000453:epidemiology*; D007752:Obstetric Labor, Premature / Q000453:epidemiology; D011247:Pregnancy; D011248:Pregnancy Complications / Q000453:epidemiology*; D011272:Pregnancy, Multiple / Q000706:statistics & numerical data; D011295:Prenatal Care / Q000706:statistics & numerical data*; D011446:Prospective Studies; D012307:Risk Factors; D012907:Smoking / Q000453:epidemiology; D012959:Socioeconomic Factors; D050497:Stillbirth / Q000453:epidemiology*; D019966:Substance-Related Disorders / Q000453:epidemiology; D055815:Young Adult