British researchers believe that ranyaya pregnancy contagious. The younger sisters are taking a cue from older sisters, when they decide to engage in unprotected sex.
Level teenage pregnancy in Western countries over the past 30 years has increased by a staggering 60%. Give birth in 13 years girls anywhere in the US or UK have long ceased to become an excuse for newspaper sensationalism. But scientists are trying to understand what pushes teens on unprotected sex . Now, this phenomenon found family roots.
When the older sister suddenly become a young mother, the possibility that her younger sister to repeat this "achievement", grows twice. Researchers from the University of Bristol found that if under normal circumstances the risk teenage pregnancy is 1 to 5, in families with older sisters become pregnant in 50% of cases, younger too forget about contraception.
"Previous studies have shown that family history and the level of girls' education reduces the chances of early pregnancy - Said Professor Carol Propper. - However, our study found that "the effect of older sisters" in this case is stronger than the effect of education. We are convinced that unprotected sex It can be really contagious. This requires direct efforts of teachers, psychologists, social workers, to those families whose older sisters have given birth in their teens, and they have younger sisters. This is the main risk group. "
British researchers have made this conclusion based on the study of records on 42 thousand Norwegian women born after World War II. Most of them gave birth in the 1970s and 80s. In the study, researchers from the British University of Bristol and Imperial College in London, assisted by experts from the University of Bergen in Norway, the Norwegian School of Economics.
Pregnancy and Gynecology
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