tetano
Editor, Senior Moderator
Pandemic influenza A (H1N1) disproportionately affects different age groups. The purpose of the current study was to describe the age and gender difference of pandemic influenza A (H1N1) cases that lead to pneumonia, hospitalization or ICU admission.
Methods: Data were collected retrospectively between May 2009 and December 2009.
All of the diagnoses of H1N1 were confirmed by real-time reverse-transcription polymerase chain reaction (RT-PCR).
Results: During the study period there were 3402 cases of RT-PCR positive H1N1, among which 1812 were males and 1626 were adults (>15 years of age). 6% (206/3402) of patients required hospitalization, 3.6% (122/3402) had infiltrates on chest radiographs, and 0.70% (24/3402) were admitted to intensive care unit (ICU).
The overall fatality rate was 0.1% (4/3402). The rate of hospitalization was sharply increased in patients >50 years of age especially in male.
Out of 122 pneumonia patients, 68.8% (84 patients) were male. Among the patients admitted to the ICU, 70.8% (17 patients) were male.
Approximately 1 of 10 H1N1-infected patients admitted to the ICU were >70 years of age.
Conclusions: Among the confirmed cases of H1N1, the ICU admission rate was <1% and the case fatality rate was 0.1%. Male had a significantly higher rate of pneumonia and hospital admission.
These findings should be taken into consideration when developing vaccination and treatment strategies.
Author: Won-Il ChoiByung Hak RhoMi-Young Lee
Credits/Source: BMC Research Notes 2011, 4:351
http://7thspace.com/headlines/39370...pandemic_influenza_a_h1n1_2009_infection.html
Methods: Data were collected retrospectively between May 2009 and December 2009.
All of the diagnoses of H1N1 were confirmed by real-time reverse-transcription polymerase chain reaction (RT-PCR).
Results: During the study period there were 3402 cases of RT-PCR positive H1N1, among which 1812 were males and 1626 were adults (>15 years of age). 6% (206/3402) of patients required hospitalization, 3.6% (122/3402) had infiltrates on chest radiographs, and 0.70% (24/3402) were admitted to intensive care unit (ICU).
The overall fatality rate was 0.1% (4/3402). The rate of hospitalization was sharply increased in patients >50 years of age especially in male.
Out of 122 pneumonia patients, 68.8% (84 patients) were male. Among the patients admitted to the ICU, 70.8% (17 patients) were male.
Approximately 1 of 10 H1N1-infected patients admitted to the ICU were >70 years of age.
Conclusions: Among the confirmed cases of H1N1, the ICU admission rate was <1% and the case fatality rate was 0.1%. Male had a significantly higher rate of pneumonia and hospital admission.
These findings should be taken into consideration when developing vaccination and treatment strategies.
Author: Won-Il ChoiByung Hak RhoMi-Young Lee
Credits/Source: BMC Research Notes 2011, 4:351
http://7thspace.com/headlines/39370...pandemic_influenza_a_h1n1_2009_infection.html