Breastfeeding and feeding patterns in three birth cohorts in Southern Brazil: trends and differentials

Cesar G Victora1, Alicia Matijasevich, Iná S Santos

  • 1Programa de Pós-graduação em Epidemiologia, Universidade Federal de Pelotas, Pelotas, Brasil. cvictora@terra.com.br

Cadernos De Saude Publica
|September 18, 2008
PubMed

Insights

Breastfeeding duration in Brazil significantly increased between 1982 and 2004, with exclusive breastfeeding rates also rising. However, current breastfeeding practices still fall short of international recommendations.

Area of Science:

  • Pediatrics
  • Public Health
  • Epidemiology

Background:

  • Breastfeeding is crucial for infant health and development.
  • Trends in breastfeeding practices require ongoing monitoring to inform public health initiatives.

Purpose of the Study:

  • To analyze changes in breastfeeding duration and complementary feeding practices over three decades in Pelotas, Brazil.
  • To evaluate the impact of public health interventions on breastfeeding trends.

Main Methods:

  • A comparative analysis of three population-based birth cohorts (1982, 1993, 2004).
  • Home-based interviews around 12 months of age to collect data on breastfeeding duration and food introduction.
  • Statistical analysis to compare trends across cohorts and demographic groups.

Main Results:

  • Median breastfeeding duration increased from 3.1 to 6.8 months between 1982 and 2004.
  • Exclusive breastfeeding at three months rose from negligible levels to one-third of infants by 2004, with accelerated growth post-1993.
  • Breastfeeding patterns varied by socioeconomic status, with higher prevalence in higher-income families initially, shifting to lower-income families later in infancy.

Conclusions:

  • Breastfeeding promotion activities appear to have positively impacted duration and exclusivity.
  • Further interventions are needed to align breastfeeding practices with international guidelines.
  • Targeted support is essential for low birth weight infants and those from low-income families.

Related Concept Videos

Oxygen Requirements and Growth Patterns01:29

Oxygen Requirements and Growth Patterns

Microorganisms exhibit diverse oxygen requirements and growth patterns driven by their metabolic strategies and environmental adaptations. Oxygen, while essential for many organisms, can also be toxic under certain conditions, shaping how microorganisms grow and survive.Oxygen Requirements of MicroorganismsMicroorganisms are classified based on their ability to use or tolerate oxygen:● Obligate aerobes like Mycobacterium tuberculosis need oxygen for energy production, as it serves as the...
Development of Human Microbiota01:30

Development of Human Microbiota

The human microbiota begins developing at birth and undergoes continual change as we age. Infancy marks a critical period of microbial sensitivity, offering a “window of opportunity” during which beneficial microbes help mature the immune system. By age three, children typically develop a more stable and diverse microbial community. Newborns acquire microbes from their immediate environment; vaginal delivery favors maternal vaginal microbes, while cesarean births favor microbes from the skin...
Development of the Oral Microbiota01:28

Development of the Oral Microbiota

The establishment of the oral microbiome begins before birth, challenging the long-held belief that the fetal oral cavity is sterile. The presence of oral microbes such as Streptococcus and Fusobacterium in amniotic fluid suggests that microbial exposure may occur in utero, potentially through translocation from the maternal oral or gastrointestinal tract. This early colonization primes the neonatal immune system and sets the stage for subsequent microbial succession. Maternal health,...
Energy Budgets and Reproductive Strategies00:51

Energy Budgets and Reproductive Strategies

Organisms must balance energy intake with the energy required for growth, maintenance, and reproduction. These trade-offs result in a variety of survivorship and reproductive strategies, including semelparity and iteroparity. Semelparous species reproduce only once in their lifetime, often investing most available resources into that single reproductive event. Iteroparous species, by contrast, reproduce multiple times over their lifetimes, typically allocating fewer resources to any single...
Parental Care00:55

Parental Care

Many animals exhibit parental care behavior, including feeding, grooming, and protecting young offspring. Parental care is universal in mammals and birds, which often have young that are born relatively helpless. Several species of insects and fish, as well as some amphibians, also care for their young.
Bias in Epidemiological Studies01:29

Bias in Epidemiological Studies

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: