Anaemia in low-income and middle-income countries

Area of Science:

• Public Health
• Global Health
• Epidemiology

Background:

• Anaemia affects a quarter of the global population, with high prevalence in children and non-pregnant women.
• The economic impact of anaemia on human capital results in billions of dollars in annual losses.
• Anaemia disproportionately affects low socioeconomic groups, highlighting health disparities.

Purpose of the Study:

• To review the epidemiology, clinical assessment, pathophysiology, and consequences of anaemia in low- and middle-income countries.
• To analyze the socioeconomic determinants and risk factors associated with anaemia.
• To identify challenges and propose strategies for alleviating the anaemia burden in resource-limited settings.

Main Methods:

• Literature review of anaemia epidemiology and consequences.
• Analysis of population-level data on anaemia prevalence and risk factors.
• Synthesis of information on multifactorial causes and socioeconomic influences.

Main Results:

• Anaemia is highly prevalent in low-income and middle-income countries, particularly among young children and non-pregnant women.
• Maternal anaemia is strongly linked to child anaemia, indicating intergenerational effects.
• The causes of anaemia are multifactorial, involving complex interactions between nutrition, infectious diseases, and socioeconomic status.

Conclusions:

• Addressing the anaemia burden requires understanding its complex, multifactorial etiology and socioeconomic determinants.
• Improved implementation of population-level strategies and reduction of knowledge gaps in research and policy are essential.
• Targeted interventions are needed to alleviate anaemia, especially in vulnerable populations within low-resource settings.