Factors Associated with Death from Severe Influenza A(H1N1)pdm09 in Rio de Janeiro, 2009

1,191 confirmed cases of Severe Acute Respiratory Infection (SARI) caused by influenza A(H1N1)pdm09 among residents of Rio de Janeiro in 2009. The data was analyzed by Gustavo Machado Felinto to study factors associated with death, including demographics, comorbidities, and radiological patterns. The analysis found a 7.4% mortality rate, with higher chances of death associated with low educational level, presence of comorbidity, and specific pulmonary radiological patterns.

Use Cases

• Predicting mortality risk in severe influenza cases based on patient demographics and comorbidities mentioned in the description
• Analyzing the association between educational level and severe disease outcomes as described in the study
• Modeling the impact of radiological patterns (interstitial infiltrate, consolidation) on patient prognosis
• Studying the epidemiological profile of the 2009 H1N1 pandemic in a specific urban population

Strengths

• Includes 1,191 confirmed clinical cases, providing a substantive sample size
• Contains specific outcome data with a 7.4% mortality rate
• Analysis includes multiple factors: demographics (60.3% women, 48.1% under 20), comorbidities (35.7%), and radiological patterns

Limitations

• Row count for the underlying dataset is unknown, which may limit suitability assessment
• Column-level documentation is absent; field semantics must be inferred after download
• Data is from a single city and year, which may limit generalizability

Provenance

Source

Gustavo Machado Felinto

Collection Method

Analysis of secondary data from confirmed influenza A(H1N1)pdm09 cases with SARI criteria

Time Range

2009

Geography

City of Rio de Janeiro, Brazil