Seasonal Variations in Mortality in Bangladesh
Author Information
Author(s): Burkart Katrin, Khan Mobarak H, Krämer Alexander, Breitner Susanne, Schneider Alexandra, Endlicher Wilfried R
Primary Institution: Humboldt-Universität zu Berlin
Hypothesis
How do seasonal variations affect all-cause and cause-specific mortality in urban and rural areas of Bangladesh?
Conclusion
The study found that mortality in Bangladesh shows complex seasonal variations, with higher rates in the cold season and a secondary peak in summer, influenced by age, gender, and socioeconomic status.
Supporting Evidence
- Mortality was generally higher during the cold season.
- Children and the elderly faced stronger seasonal effects than youths and young adults.
- Urban areas showed an increased summer mortality peak, particularly for cardiovascular deaths.
- The study highlighted the influence of socioeconomic status on mortality patterns.
Takeaway
This study shows that people in Bangladesh die more in the cold months and sometimes in the summer, especially older people and children.
Methodology
The study analyzed daily death counts from the Sample Vital Registration System, stratified by location, gender, and socioeconomic status, using non-parametric spline smoothing to assess seasonality.
Potential Biases
The classification of causes of death is rough and does not follow international standards, which may introduce bias.
Limitations
The study's data is based on a sample rather than a complete inventory, and the cause of death classification is not medically certified.
Participant Demographics
The study included deaths from various demographics across urban and rural areas in Bangladesh, stratified by age and socioeconomic status.
Statistical Information
P-Value
p<0.001
Confidence Interval
95%
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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