期刊
BMC INFECTIOUS DISEASES
卷 8, 期 -, 页码 -出版社
BMC
DOI: 10.1186/1471-2334-8-130
关键词
-
资金
- National Natural Science Foundation of China [70503028]
- State Education Ministry [[2008] 890]
Background: The effects of climate variations on bacillary dysentery incidence have gained more recent concern. However, the multi-collinearity among meteorological factors affects the accuracy of correlation with bacillary dysentery incidence. Methods: As a remedy, a modified method to combine ridge regression and hierarchical cluster analysis was proposed for investigating the effects of climate variations on bacillary dysentery incidence in northeast China. Results: All weather indicators, temperatures, precipitation, evaporation and relative humidity have shown positive correlation with the monthly incidence of bacillary dysentery, while air pressure had a negative correlation with the incidence. Ridge regression and hierarchical cluster analysis showed that during 1987-1996, relative humidity, temperatures and air pressure affected the transmission of the bacillary dysentery. During this period, all meteorological factors were divided into three categories. Relative humidity and precipitation belonged to one class, temperature indexes and evaporation belonged to another class, and air pressure was the third class. Conclusion: Meteorological factors have affected the transmission of bacillary dysentery in northeast China. Bacillary dysentery
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