Sex differences in mortality among young children in the Sahel

Area of Science:

• Demography
• Child Health
• Epidemiology

Background:

• Child mortality remains a significant public health concern in sub-Saharan Africa.
• Understanding sex-based disparities in child mortality is crucial for targeted interventions.
• Previous research indicates varying patterns of sex differences in mortality across different regions and age groups.

Purpose of the Study:

• To investigate sex differences in mortality risk among children aged 1-23 months.
• To analyze these differences across specific age strata within the study populations.
• To compare mortality patterns between urban areas (Bamako, Bobo-Dioulasso) and a rural area (Senegal).

Main Methods:

• A comparative study design was employed.
• Data were collected from children aged 1-23 months in Bamako (Mali), Bobo-Dioulasso (Burkina Faso), and a rural area of Senegal.
• Statistical analyses were performed to identify significant differences in mortality risks between males and females across different age groups.

Main Results:

• No overall significant sex differences in mortality were observed for the entire 1-23 month age span.
• Excess female mortality was significant in the 1-8 month age group in rural Senegal.
• Excess female mortality was also noted in the 6-15 month age group in urban Bamako and Bobo-Dioulasso.
• Conversely, excess male mortality was evident in the 16-23 month age group in Bamako.

Conclusions:

• Child mortality patterns exhibit age- and location-specific sex differences.
• Infant mortality may disproportionately affect females in certain early age groups and regions.
• Adolescent mortality in late infancy may pose a greater risk to males in specific urban settings.