Impact of Pandemic Influenza H1N1 on Health-Related Quality of Life
Author Information
Author(s): van Hoek Albert Jan, Underwood Anthony, Jit Mark, Miller Elizabeth, Edmunds W. John
Primary Institution: Health Protection Agency, London, United Kingdom
Hypothesis
What is the burden of H1N1 influenza on health-related quality of life measured in QALYs?
Conclusion
The overall burden of illness from the H1N1 pandemic was substantial, with over 28,000 QALYs lost in England.
Supporting Evidence
- Confirmed H1N1 cases had a longer average duration of illness compared to ILI controls.
- Quality-adjusted life days lost was 2.92 for confirmed cases and 2.74 for ILI controls.
- Prompt use of antivirals reduced the number of QALDs lost by 50%.
Takeaway
The H1N1 flu made many people sick, and even though most didn't die, it still caused a lot of problems for their health and daily life.
Methodology
A prospective study comparing confirmed H1N1 cases with ILI controls using questionnaires and EQ-5D assessments.
Potential Biases
Response bias may exist as more severely affected patients might have been more likely to respond.
Limitations
The study did not include non-febrile cases, which may underestimate the total burden of influenza.
Participant Demographics
Participants included both adults and children, with a slightly higher fraction of controls in risk groups.
Statistical Information
P-Value
0.003
Confidence Interval
22%–110%
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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