Related Experiment Video
Updated: Jul 28, 2025
06:48
Breakfast Habits among Schoolchildren in the City of Uruguaiana, Brazil
Published on: July 29, 2020
4.6K
National Abortion Survey - Brazil, 2021
Debora Diniz1, Marcelo Medeiros2, Alberto Madeiro3
1Faculdade de Direito, Universidade de Brasília. Campus Universitário Darcy Ribeiro, Asa Norte. 70904-970 Brasília DF Brasil. d.diniz@anis.org.br.
Ciencia & Saude Coletiva
|May 31, 2023
Summary
The National Abortion Survey 2021 found that while abortion rates are declining in Brazil, it remains a significant public health concern. Most abortions occur early in reproductive life, with higher rates among marginalized groups.
Area of Science:
- Public Health
- Reproductive Health
- Sociology
Background:
- Abortion is a critical public health issue in Brazil.
- Previous National Abortion Surveys (PNA 2010, PNA 2016) established baseline data.
- Understanding current trends is vital for public health interventions.
Purpose of the Study:
- To assess current abortion trends in Brazil.
- To compare findings with previous survey waves (PNA 2010, PNA 2016).
- To identify demographic and socioeconomic factors associated with abortion.
Main Methods:
- Face-to-face structured interviews and self-administered questionnaires.
- Nationally representative sample of 2,000 literate women aged 18-39 in urban areas.
- Comparison of 2021 data with 2010 and 2016 survey results.
Main Results:
- Abortion prevalence declined to approximately 10% in 2021 (from 15% in 2010).
- Nearly 15% of women have had an abortion by age 40.
- Decreased need for hospitalization (43% in 2021 vs. 55% in 2010) and medication use (39% vs. 48%).
- 52% of first abortions occurred at age 19 or younger.
- Higher rates observed in women with lower education, Black and Indigenous women, and those in poorer regions.
Conclusions:
- Abortion is declining but remains a major public health issue in Brazil.
- Abortion typically occurs early in women's reproductive lives.
- Disparities persist, with higher rates among vulnerable populations.
Related Concept Videos
01:28Infertility in Females
355
Female infertility is defined as the inability to conceive after a year of regular, unprotected intercourse and affects about 10–15% of couples worldwide. The primary cause of female infertility is ovulatory disorders, which hinder the release of eggs. These disorders can be classified as hypothalamic amenorrhea, polycystic ovarian syndrome (PCOS), premature ovarian failure, and hyperprolactinemic anovulation disorders.
Endometriosis, a condition characterized by abnormal growth of...
Endometriosis, a condition characterized by abnormal growth of...
355
01:50Cross-Sectional Research
11.4K
In cross-sectional research, a researcher compares multiple segments of the population at the same time. If they were interested in people's dietary habits, the researcher might directly compare different groups of people by age. Instead of following a group of people for 20 years to see how their dietary habits changed from decade to decade, the researcher would study a group of 20-year-old individuals and compare them to a group of 30-year-old individuals and a group of 40-year-old...
11.4K
01:08Prevalence and Incidence
650
In statistical epidemiology and health sciences, two essential metrics—prevalence and incidence—are fundamental for understanding disease dynamics within a population. These measures enable public health officials, epidemiologists, and researchers to assess the burden of diseases, allocate resources effectively, and design impactful public health policies and interventions.
Prevalence indicates the proportion of individuals in a population who have a specific disease or health...
Prevalence indicates the proportion of individuals in a population who have a specific disease or health...
650
01:28Survey Safety
60
Surveying near highways, rough terrain, or power lines involves significant risks. Working along highways is particularly dangerous and requires the use of warning signs and flagmen. It is safest to avoid working directly on roads and use offsets whenever possible. When highway work is unavoidable, it must follow all safety guidelines. Surveyors should wear bright clothing, such as orange reflective vests, to ensure visibility to motorists, coworkers, and hunters. In construction zones, wearing...
60
01:29Bias in Epidemiological Studies
388
Biases can arise at various stages of research, from study design and data collection to analysis and interpretation. Recognizing and addressing these biases is essential to ensure the validity and reliability of epidemiological findings.Broadly speaking, biases in epidemiology fall into three main categories: selection bias, information bias, and confounding. A more detailed description of possible biases is:
388
01:22Birth Control Methods
377
Vasectomy is a surgical form of male sterilization that involves severing and sealing the vasa deferentia, preventing sperm from mixing with semen during ejaculation. Because a vasectomy does not impact the testes' ability to produce testosterone, hormone levels, libido, and sexual function generally remain unchanged. While vasectomy is highly effective in preventing pregnancy, with a success rate near 99.85%, rare cases of recanalization (spontaneous reconnection) can occur. Although...
377