Unseen Barriers: Why Infant Mortality Persists in Under-Resourced Communities
"Digging Deeper than Dollars: Understanding the Real Obstacles to Infant Healthcare in South Africa"
The Millennium Development Goal 4 set an ambitious target: reduce under-five mortality by two-thirds by 2015. While progress has been made, achieving this goal, and sustaining it, demands a critical look at the quality of care provided to children and, crucially, the healthcare-seeking behaviors of their families. We often focus on access – are there clinics? Are there doctors? But the reality is far more complex, especially in under-resourced communities.
This article explores a critical study focused on understanding the influences on healthcare-seeking during the final illnesses of infants in two under-resourced South African settings. It moves beyond simple assumptions to delve into the real-world challenges faced by caregivers when their infants are most vulnerable. The findings reveal a web of interconnected factors that impact access to care, challenging us to rethink how we approach public health interventions.
By examining these factors, we can ensure that policies and programmes effectively address the constraints families face and build upon the enabling factors that promote appropriate healthcare-seeking.
The Scale of the Problem
Infant mortality is the death of an infant before its first birthday, and the infant mortality rate (IMR) is the number of deaths of infants under one year of age per 1,000 live births. One recent compilation reports that 5 million infants died worldwide in 2022, with neonatal causes dominant and preventable infections and supports such as breastfeeding and immunization identified as key factors. In the United States, infant deaths are registered with birth and death certificates, and the CDC publishes provisional national estimates from its period linked birth/infant death file.
Methods Used to Study Infant Mortality and Their Limits
Researchers use a range of quantitative methods to study infant mortality, including the decomposition technique developed by Evelyn Kitagawa, which has been used to separate the effect of birthweight on infant mortality and to identify racial/ethnic differences in outcomes by area-based poverty measures. In settings such as South Africa, Bayesian approaches have been used to quantify the spatial risk of infant mortality while accounting for correlation between neighboring areas. International comparisons carry an important limitation: countries differ in how they report infant deaths, particularly among infants with very low odds of survival, and even after accounting for these reporting differences, the U.S. infant mortality rate remains higher than in comparable countries.
Centuries of Recorded Infant Death
Records of infant mortality extend far back in history, with historical accounts documented in Germany as early as the 15th century. Formal historical analyses reconstruct infant and child mortality in specific communities, such as a study of two groups of infants in the comarca of La Cabrera in León, Spain, between 1880 and 1932. Such work shows how infant mortality in the past varied within the same environmental context and laid groundwork for today's population-level tracking.
Beyond the Clinic Walls: The Real Barriers to Infant Healthcare
The original study, published in the Journal of Health, Population and Nutrition, employed qualitative interviews with 39 caregivers of deceased infants, alongside interviews with 19 local health providers and community leaders. This multi-faceted approach allowed researchers to gain a rich understanding of the complex dynamics at play in these communities. The data revealed several key themes that go beyond simple economic factors:
- Limited Autonomy: Caregivers often need approval from family elders before seeking care, delaying treatment.
- Lack of Awareness: Many caregivers don't recognize critical infant danger signs.
- Externalizing Causes: Illness is sometimes attributed to witchcraft or angry ancestors, leading families to seek traditional healers first.
- System Issues: Poor performance by health workers and difficulty accessing services further complicate the situation.
New Findings on Cash Transfers and Nativity
A recent study published in JAMA Network Open reports that U.S.-born individuals have higher odds of infant mortality than non-U.S.-born individuals. In another line of research, a study led by UC Berkeley and Oxford researchers that tracked more than 100,000 births found that infant mortality fell by 48% in the years families received a one-time $1,000 transfer from GiveDirectly. Coverage of current trends also notes that while overall U.S. infant mortality rates are dropping, rates of sudden unexpected infant death may have increased in recent years.
Infant Mortality as an Indicator of Systemic Failure
Infant mortality is widely described as a critical indicator of population health, reflecting the overall state of maternal health as well as the quality and accessibility of primary health care available to pregnant women and infants. The sources reviewed agree that higher infant mortality rates are generally observed in populations experiencing poverty, driven by factors such as limited access to healthcare, inadequate nutrition, poor sanitation, and higher exposure to disease.
Comparing Infant Mortality Across Countries
International comparisons of infant mortality use the number of deaths of infants under one year old per 1,000 live births in a given year, a rate often used as an indicator of a country's level of health. Cross-country rankings can be distorted by reporting differences, however, because countries are not always consistent in whether a very early birth is classified as a late fetal death or an infant death. The use of measures such as feto-infant mortality rates helps provide more uniform comparisons by reducing the subjectivity involved in determining late fetal deaths (over 28 weeks of gestation) versus infant deaths.
Moving Forward: A Holistic Approach to Infant Healthcare
To truly improve infant health outcomes, interventions must address the complex interplay of factors identified in this study. This includes not only strengthening health systems and improving access to care but also empowering caregivers with the knowledge and autonomy to make timely decisions. This requires a multi-pronged approach that takes into account the social, cultural, and economic realities of these communities, fostering collaboration between allopathic and traditional medicine, and ensuring that healthcare providers are culturally sensitive and responsive to the needs of their patients. Addressing health system barriers will improve timely and appropriate healthcare-seeking for sick infants.
Experts Sound the Alarm on Rising Inequalities
Child health experts have issued an urgent call to address rising infant mortality inequalities. Analysis by Health Equity North found that the most deprived parts of the country, the North of England, and Black and Asian ethnic groups all experienced an increase in infant mortality rates. National figures on infant deaths in 2022, compiled by child health experts including the University of Liverpool's Professor David Taylor-Robinson, show that after a brief hiatus infant mortality is rising once again, exposing stark inequalities across society.
Projecting a Continued Decline
The global infant mortality rate is projected to keep falling, shrinking from roughly 26.4 per 1,000 live births in 2025 to an average of about 9.6 per 1,000 live births by 2100, a decrease of more than 60%. Regional progress is also documented: Africa's infant mortality rate fell from 183 deaths per 1,000 live births in 1955 to 47 in 2020. Global neonatal sudden infant death syndrome mortality also declined from 1990 to 2021, with behavioral risks, child and maternal malnutrition, and low birth weight and short gestation accounting for the greatest remaining burden.
Systemic Drivers Beyond the Delivery Room
The infant mortality rate is an important indicator of a population's overall health, reflecting the quality of healthcare, maternal health, and socioeconomic conditions. Disparities also appear within populations: a study of infants with congenital diaphragmatic hernia in a U.S. population-based dataset examined disparities in one-year mortality by maternal race/ethnicity and quantified how much socioeconomic status and maternal and neonatal medical factors mediate those gaps. Environmental exposures add another layer, with a study of sub-Saharan Africa finding that a relatively small increase in airborne particles significantly raises infant mortality rates.
Choices, Settings, and the Cost of Care
Interactive data tools, such as the Gapminder visualization, relate infant mortality rates to total spending on health per person across countries, underscoring how financial resources shape outcomes. A large U.S. study drawing on CDC linked birth and death records covering 14 million births from 2006 to 2009 found increased infant mortality for home births, a finding with direct implications for where families choose to deliver.