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Fertility rates among very young adolescent women: temporal and spatial trends in Brazil

Overview of attention for article published in BMC Pregnancy and Childbirth, March 2016
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Title
Fertility rates among very young adolescent women: temporal and spatial trends in Brazil
Published in
BMC Pregnancy and Childbirth, March 2016
DOI 10.1186/s12884-016-0843-x
Pubmed ID
Authors

Ana Luiza Vilela Borges, Christiane Borges do Nascimento Chofakian, Ana Paula Sayuri Sato, Elizabeth Fujimori, Luciane Simões Duarte, Murilo Novaes Gomes

Abstract

We assessed whether the reported decrease in fertility rates among 15 to 19 years old Brazilian adolescents has met with a parallel decrease in very young adolescent (10 to 14 years old) fertility rates. So we explored temporal trends for fertility rates among very young adolescents between 2000 and 2012 for Brazil as a whole, its regions and states; and also analyzed the spatial distribution of fertility rates among Brazilian municipalities in the years 2000 and 2012. We used data from the Information System on Live Births to calculate the rates. To examine the temporal trends, we used linear regression for time series with Prais-Winsten estimation, including the annual percentage change, for the country, regions, and states. To analyze the spatial distribution among Brazilian municipalities, we calculated the Global Moran Index and created a local Moran significance and cluster map through Local Indicators of Spatial Association (LISA). We also elaborated a thematic map with the rates using empirical Bayesian estimation. Brazilian very young adolescent fertility rates remained high and stable throughout the 2000 to 2012 period, and significantly decreased in three out of 26 states, and in the federal district. On the other hand, an increase was observed in two Northern and Northeastern states. The rates were spatially dependent in Brazilian municipalities (Moran Index = 0.22 in 2012; p = 0.05). The maps indicated a heterogeneous distribution of the rates, with high-rate clusters predominant in the North and low-rate clusters predominant in the South, Southeast, and Midwest. Our findings indicate that Brazilian very young adolescent fertility rates have not decreased in parallel with adolescent fertility rates as they remain high and did not decrease from 2000 and 2012, even though a few states presented a decrease. Thus, these phenomena probably have distinct underlying causes that warrant further elucidation. Progress in this field is crucial for the development of specific policies and programs focused on very young adolescents.

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X Demographics

The data shown below were collected from the profiles of 3 X users who shared this research output. Click here to find out more about how the information was compiled.
Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 59 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Ghana 1 2%
Brazil 1 2%
Unknown 57 97%

Demographic breakdown

Readers by professional status Count As %
Student > Master 10 17%
Student > Bachelor 6 10%
Researcher 6 10%
Student > Doctoral Student 4 7%
Student > Postgraduate 4 7%
Other 6 10%
Unknown 23 39%
Readers by discipline Count As %
Nursing and Health Professions 11 19%
Medicine and Dentistry 11 19%
Social Sciences 6 10%
Psychology 2 3%
Biochemistry, Genetics and Molecular Biology 1 2%
Other 3 5%
Unknown 25 42%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 3. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 28 March 2016.
All research outputs
#14,105,592
of 24,119,703 outputs
Outputs from BMC Pregnancy and Childbirth
#2,591
of 4,494 outputs
Outputs of similar age
#146,395
of 305,343 outputs
Outputs of similar age from BMC Pregnancy and Childbirth
#34
of 59 outputs
Altmetric has tracked 24,119,703 research outputs across all sources so far. This one is in the 40th percentile – i.e., 40% of other outputs scored the same or lower than it.
So far Altmetric has tracked 4,494 research outputs from this source. They typically receive more attention than average, with a mean Attention Score of 9.0. This one is in the 41st percentile – i.e., 41% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 305,343 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 51% of its contemporaries.
We're also able to compare this research output to 59 others from the same source and published within six weeks on either side of this one. This one is in the 42nd percentile – i.e., 42% of its contemporaries scored the same or lower than it.