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Published on: November 5, 2019
Bacterial meningitis and living conditions
Shirley Fonseca de Souza1, Maria da Conceição Nascimento Costa, Jairnilson Silva Paim
1Secretaria de Saúde do Estado da Bahia, Salvador, BA, Brasil.
Revista Da Sociedade Brasileira De Medicina Tropical
|July 5, 2012
Summary
Bacterial meningitis trends downward in Salvador, Brazil, but poor living conditions correlate with higher fatality rates, especially from meningococcal disease. Access to quality healthcare remains a critical factor.
Area of Science:
- Epidemiology
- Public Health
- Infectious Diseases
Background:
- Bacterial meningitis poses significant risks, causing sequelae and death, particularly in children in developing nations.
- Meningococcal meningitis is prevalent in populations with substandard living conditions.
- This study investigates the temporal and spatial dynamics of bacterial meningitis in Salvador, Brazil, from 1995 to 2009.
Purpose of the Study:
- To describe the temporal evolution of bacterial meningitis in Salvador, Brazil, between 1995 and 2009.
- To analyze the association between the spatial variation of bacterial meningitis and the living conditions of the population.
- To identify demographic groups most affected by bacterial meningitis.
Main Methods:
- Ecological study design utilizing an index of living conditions to classify areas.
- Trend analysis using trend curves to examine temporal fluctuations.
- Simple linear regression to assess the relationship between living conditions and spatial distribution of meningitis.
Main Results:
- A total of 3,456 confirmed bacterial meningitis cases were recorded from 1995-2009, showing a downward trend.
- The overall yearly incidence was 9.1 cases/100,000 population with a 16.7% fatality rate.
- Higher fatality rates from meningococcal disease were observed in areas with poorer living conditions (β = 0.0078117, p < 0.005), with no significant spatial autocorrelation.
Conclusions:
- While bacterial meningitis affects all socioeconomic levels, areas with adverse living conditions exhibit a disproportionately higher case fatality rate.
- These disparities highlight challenges in accessing timely and quality medical care for vulnerable populations.
- Targeted public health interventions in disadvantaged areas are crucial to mitigate meningitis mortality.
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