Desk dos suggests that early maternity was on the better amount of births a woman gets throughout the their unique existence. The brand new percentage of births by the age bracket suggests that the original maternity old ten to 14 decades had the large frequency off six to eight births (20.7%; 95% CI -26.3). The brand new thickness out of a distribution are high if very first pregnancy took place anywhere between 29 and you will 39 decades (65.1%; 95% CI sixty.8-69.4).
This research learned that age very first maternity during the Brazil is targeted regarding generation out-of 15 so you’re able to 29 ages dated. The big local distinctions stick out: on the poorest regions of the nation, the start of pregnancy takes place in the first age groups; In more install nations, age basic maternity is within the range of 20-30 ages, with high proportions out-of pregnancies anywhere between 31-39 many years.
The first onset of the fresh reproductive procedure, described as a relatively higher virility development for females below 20 years old, due to the reduced this new beginning rate when you look at the Brazil, was noticed toward 15-19 season-old cohorts regarding Federal Group Survey and you can Health 2006, that has been noticed a procedure out of “compensation”, as the a leading fertility one of teens do result in the costs so you’re able to feel really lowest from the other age, to save a number of students at the end 7 .
Regarding the guess of females that has the earliest sexual intercourse through to the age fourteen practically twofold ranging from 1984 and meet british women you may 1998 (13
Brazil is just one of the 10 nations towards the high incidence away from adolescent pregnancy in absolute terms all over the world. For the latest many years, the total virility rates has actually fell significantly, away from 6.step three students each woman during the early 1960s to at least one.8 for every single lady within the 2002-2006. Yet not, the brand new reduction in virility has been more sluggish one of adolescents as compared to people in identical living criteria. In 2006, 39 from every step 1,000 female old ten-19 ages got youngsters inside 2006, and that intended a slight cures from forty-five for each step 1,000 from inside the 1996; when you’re among those old 10 in order to fourteen there can be hook improve of 3 to 4 births per step 1,000 women along the same months 19 .
Already in the 1998, this new median age verified reduced so you’re able to fifteen years. 2% in 1984, whilst in 1998 this commission flower so you’re able to 46.7%. 6% and you may thirty-two.3%, respectively) 20 . With respect to the occurrence, new expectation of the start of reproductive sex seems to be pertaining to the lower amount of studies and you may low-adherence in order to birth-control strategies and you can, therefore, to the onset of the initial pregnancy 21 .
When you look at the countries with done mathematical studies, new maternity rate one of fifteen- to 19-year-olds try large in the usa (57 pregnancies per 1,000) while the lowest for the Switzerland (8 each step one,000). To own adolescents old 10 so you’re able to 14 age, a minimal maternity rate took place Switzerland (0.09 each step one,000) and highest was a student in Hungary (1.19 pregnancies for each and every step 1,000) plus the us (1.08 for every single step one,000) twenty two .
In addition, the number of men teenagers that has its basic sexual intercourse before period of fourteen are thirty five
In the Brazil last year, ? of births taken place among girls under 19, having increased percentage getting girls less than fifteen. The highest rates corresponded to the Northern countries, step 1.6% throughout the ten in order to 14 many years generation and you will twenty-five% in the 15 in order to 19 yrs old, and the Northeast, 1.3% in the 10 so you’re able to 14 yrs old classification and you will 21% during the fifteen to help you 19 years of age 23 , guaranteeing the better incidence out of teenage maternity regarding the poorest regions of the country.