[Pregnancy and labor activity: is there really risk?]

In the last decades the participation of women in the family economy has increased causing in theory a higher risk for reproduction.

To investigate whether labor negatively influences the course and culmination of pregnancy in women workers.

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.

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.

Work does not imply an increased obstetric complication or neonatal morbidity risk.