Dining table 2 implies that very early pregnancy was from the better number of births a female are certain to get throughout their lives. This new percentage of births from the generation demonstrates the original pregnancy aged ten to fourteen years encountered the higher prevalence from 6 to 8 births (20.7%; 95% CI -twenty-six.3). The fresh new thickness out of a shipping are high when the earliest maternity took place ranging from 30 and you can 39 age (65.1%; 95% CI sixty.8-69.4).
This research learned that the age of very first maternity in the Brazil is concentrated on the generation from fifteen so you can 31 decades dated. The big regional variations get noticed: regarding the poorest regions of the world, the beginning of pregnancy occurs in the first a long time; Much more developed countries, the age of very first maternity is in the variety of 20-29 many years, with a high percentages regarding pregnancies ranging from 29-39 many years.
The early onset of the new reproductive techniques, characterized by a relatively higher fertility pattern for ladies below 20 years old, because of the lack of the new birth price inside Brazil, was seen into the 15-19 12 months-dated cohorts regarding the National Group Survey and you may Health 2006, which had been believed a mechanism of “compensation”, since the a leading fertility certainly teenagers create cause the pricing in order to feel really lower during the most other many years, to keep some pupils towards the bottom seven .
Concerning your guess of females who’d its first sexual intercourse before chronilogical age of fourteen nearly twofold ranging from 1984 and you can 1998 (thirteen
Brazil is just one of the ten regions toward highest frequency out-of teenage pregnancy for the sheer words around the world. For the latest years, the complete virility speed has actually fell markedly, away from 6.step three college students for each woman in the early 1960s to at least one.8 per woman when you look at the 2002-2006. Although not, the newest reduction in virility might have been reduced one of adolescents versus adults in identical traditions conditions. From inside the 2006, 39 out of every 1,000 feminine old ten-19 years had people in 2006, and this meant hook reduction out-of forty-five for each 1,000 inside the 1996; if you’re among those aged ten to fourteen there clearly was hook raise away from 3 to 4 births for each and every step one,000 feminine across the same several months 19 .
Already in 1998, new average years affirmed reduced in order to 15 years. 2% back in 1984, whilst in 1998 which fee rose to help you 46.7%. 6% and you can thirty-two.3%, respectively) 20 . According to trend, the latest anticipation of one’s start of reproductive sex is apparently linked to the lower number of studies and you will low-adherence to help you birth control actions and you will, therefore, with the onset of the initial maternity 21 .
In places having done statistical research, new maternity rates certainly one of 15- in order to 19-year-olds are high in america (57 pregnancies for every step 1,000) in addition to reasonable within the Switzerland (8 each step 1,000). Having teenagers aged ten so you’re able to fourteen age, a decreased maternity speed occurred in Switzerland (0.09 for each step one,000) and the higher was in Hungary (step one.19 pregnancies for every single step one,000) and also in the us (step one.08 each step 1,000) 22 .
At exactly the same time, the amount of male teens who’d its very first sexual intercourse up until the period of fourteen try thirty-five
In the Brazil in 2011, ? from births took place among girls under 19, which have a top fee to own girls not as much as fifteen. The best costs corresponded for the North nations, 1.6% on the ten so you can 14 age age bracket and you may twenty-five% in the fifteen in order to 19 years old, as well as the Northeast, step 1.3% on the ten to help you fourteen years of age category and you will 21% in the fifteen in order to 19 years of age 23 , guaranteeing the higher frequency out of adolescent pregnancy about poorest regions of the country.