title: [Pregnancy and labor activity: is there really risk?].
abstract: BACKGROUND
  In the last decades the participation of women in the family economy has increased causing in theory a higher risk for reproduction.
  
  
  OBJECTIVE
  To investigate whether labor negatively influences the course and culmination of pregnancy in women workers.
  
  
  METHODS
  Descriptive and comparative cross-sectional survey made in the Hospital General de Zona núm. 2, of the Instituto Mexicano del Seguro Social, in Aguascalientes city (Mexico), which included 154 working patients and a control group of 154 not working patients selected by pairs. The study period was from 1 February to 31 March 2010. The following variables were analyzed: age, marital status, education degree, occupation, pregnancy number, queries, weight increase, obstetric complications, obstetric event, family planning method after the obstetric event; sex, weight and gestational age of the newborn, years of labor and weekly hours labored.
  
  
  RESULTS
  There are significant differences in favor of working women according to the background; while in progress and resolution of pregnancy there is virtually no difference.
  
  
  CONCLUSIONS
  Work does not imply an increased obstetric complication or neonatal morbidity risk.
authors.affiliation: Departamento de Ginecología y Obstetricia, Hospital General de Zona núm. 2, Instituto Mexicano del Seguro Social, Aguascalientes, Ags. kikes1_13@yahoo.com
authors.forename: Enrique
authors.initials: E
authors.lastname: Rosales-Aujang
mesh_terms: D000328:Adult; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D009784:Occupational Diseases / Q000453:epidemiology*; D011247:Pregnancy; D011248:Pregnancy Complications / Q000453:epidemiology*; D055815:Young Adult