Humidity and Precipitation Effects on Asthma
Author Information
Author(s): Gu Wangyang, Xie Dan, Li Qinpeng, Feng Huike, Xue Yihao, Chen Yang, Tang Jingyi, Zhou Yushi, Wang Dan, Tong Shilu, Liu Shijian
Primary Institution: Department of Big Data Center, Sanya Women and Children's Hospital Affiliated to Hainan Medical University
Hypothesis
What is the association of increased humidity and precipitation with asthma risk?
Conclusion
Increased humidity appears to elevate asthma risk, while increased precipitation may reduce it.
Supporting Evidence
- The pooled odds ratio for humidity and asthma risk was 1.0489.
- The odds ratio for individuals under 18 years was 1.0898.
- The odds ratio for developing countries was 1.0927.
- The odds ratio for precipitation and asthma risk was 0.9991.
- Humidity impacts asthma risk more significantly in developing countries.
- High latitudes show a stronger association between humidity and asthma risk.
- Precipitation may help reduce asthma risk by cleaning the air.
- Humidity and precipitation have different effects on asthma risk.
Takeaway
When it's more humid, asthma can get worse, but when it rains, it might help people with asthma feel better.
Methodology
A systematic review and meta-analysis of 21 studies across various databases.
Potential Biases
Gender's role in asthma was unexplored due to limited studies.
Limitations
High heterogeneity in meta-analyses suggests unmeasured factors like air pollution may affect results.
Participant Demographics
Participants included individuals from various countries, with a total sample size of 1,052,960.
Statistical Information
P-Value
p<0.05
Confidence Interval
[95% CI: 1.0061, 1.0935] for humidity; [95% CI: 0.9987, 0.9995] for precipitation
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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