Male Predominance in H1N1 Pneumonia and Hospitalization
Author Information
Author(s): Choi Won-Il, Rho Byung Hak, Lee Mi-Young
Primary Institution: Dongsan Hospital, Keimyung University School of Medicine
Hypothesis
The study aimed to describe the age and gender differences in pandemic influenza A (H1N1) cases that lead to pneumonia, hospitalization, or ICU admission.
Conclusion
Males had a significantly higher rate of pneumonia and hospital admission, especially in those aged 50 years and older.
Supporting Evidence
- 6% of H1N1 patients required hospitalization.
- 68.8% of pneumonia patients were male.
- 70.8% of ICU admissions were male.
- The overall fatality rate was 0.1%.
Takeaway
This study found that more men than women got very sick from the H1N1 flu, especially older men.
Methodology
Data were collected retrospectively from patients diagnosed with H1N1 confirmed by RT-PCR between May and December 2009.
Potential Biases
Potential biases in data collection and patient selection may exist.
Limitations
The study was limited to a single hospital and may not represent broader populations.
Participant Demographics
Among the 3402 cases, 1812 were male and 1590 were female, with a median age of 14 years.
Statistical Information
P-Value
< 0.001
Confidence Interval
95% CI, 5.3-6.9
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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