.
To those conclusions came an investigation conducted by the National Institute of child health and human development Eunice Kennedy Shriver (United States). Katherine Laughon, epidemiologist in charge of the study, explains that still do not know for sure the cause of this change in the duration, but they believe it is due to the modifications implemented by professionals of health in the delivery room.
Researchers compared 40,000 deliveries crystallized in the late 1969 and 100,000 that took place from 2002 to 2008, and found that on average labor lasts 2.6 hours more in first-time mothers. Mothers who already have children the time lasted two hours.
Specialists also found that current babies are born five days earlier and tend to weigh more. Today, women also tend to have a greater body mass and four years larger index. ″Las older women typically have longer than the young delivery jobs. However, even taking into account changes in the maternal age, that doesn’t explain completely the difference in the time that lasts the work of parto″, he argues.
Laughon found several differences in medical practices used at the time of delivery. Epidurals is today most often used and administered less oxytocin, the hormone that speeds up labor. ″Sin the use of this hormone, childbirth may last even longer actualmente″ says.
Research also showed that today are four times more Caesarean sections 50 years.
Laughon considers that current medical practices used in deliveries to identify the reasons why labor lasts longer in today should be assessed.
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