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目的通过研究与H7N9禽流感爆发相关的搜索关键词在流行期产生的搜索量变化趋势与H7N9禽流感每日新增感染人数变化趋势之间的相关性,观察网络搜索关键词搜索量变化趋势与H7N9禽流感流行趋势之间是否存在一定相关性。方法利用百度指数筛选出13个用于观测的网络搜索关键词;采用pearson相关性分析方法验证网络搜索关键词搜索量变化趋势与H7N9禽流感每日新增感染人数变化趋势之间的相关性。结果网络搜索关键词与H7N9禽流感流行趋势之间存在一定的相关性。结论通过网络搜索关键词的跟踪,可以来了解H7N9禽流感爆发的进程。
Objective To investigate the relationship between the search volume of search keywords related to the outbreak of H7N9 bird flu in the epidemic period and the daily new infection frequency of H7N9 bird flu, H7N9 bird flu prevalence between the existence of a certain correlation. Methods The 13 keywords used for observation were screened by using Baidu index. Pearson correlation analysis was used to verify the correlation between the trend of search keyword search quantity and the daily new infection frequency of H7N9 bird flu. Results There was a certain correlation between the web search keywords and the epidemic trend of H7N9 bird flu. Conclusion The tracking of web search keywords can help understand the outbreak of H7N9 bird flu.