Wang Xiufang, Yin Jiaxiang, Yang Guangcan, Liu Zhengxiang, Du Chunhong, Shi Liyuan, Su Liqiong
School of Public Health, Dali University, Dali 671000, China; The Third People's Hospital of Yunnan Province.
School of Public Health, Dali University, Dali 671000, China. Email:
Zhonghua Liu Xing Bing Xue Za Zhi. 2015 Feb;36(2):139-43.
To analyze the factors related to the household abundance of rodents in rodent-borne disease foci in the western part of Yunnan province.
From July 2011 to October 2012, 800 households (20 households in 1 village) were randomly selected in 40 natural villages of 10 counties in western Yunnan where rodent borne disease was endemic to conduct a study on relationship between rodent abundance and environmental factors. Five cages were placed in each household for 3 consecutive nights to capture rodents. The rodent species were identified based on their morphological characteristics. The data on potential factors related to rodent abundance were collected through questionnaires and field observation. A dataset was established by using EpiData software and the analysis was performed with hurdle regression model under R software.
A total of 421 rodents were captured in 800 households, belonging to 9 species, 6 genera, 2 families, 2 orders. Rattus tanezumi was the predominant species (66.03%). The final hurdle regression model showed that the probability of capturing rodents in the households where family member had high education level and the garbage was placed outside declined by 50%-68% ;The probability of capturing rodents in the households of Dai and Yi ethnic groups increased by 2.16-2.87 times;The probability of capturing rodents in the households where rodents were observed or vegetables grown near houses increased by 1.54-1.59 times;In the households where many rodents were believed to exist, the probability of capturing rodents and the number of rodents captured increased by 1.59 and 1.84 times respectively. The number of rodents captured in the houses with cement or tile floor increased by 3.62 times.
The household abundance of rodents in the area in western Yunnan, where the rodent-borne disease survey was conducted, seemed to be closely related to the social economy status, human intervention and ecological environment. To control the abundance of rodents effectively, it is necessary to take these factors into consideration.
分析滇西鼠传疾病疫源地家庭鼠密度的相关影响因素。
2011年7月至2012年10月，在滇西10个县40个自然村落中，随机抽取800户家庭（每个村子20户），这些地区为鼠传疾病的流行区，开展鼠密度与环境因素关系的研究。每户放置5个鼠夹，连续放置3晚捕鼠。依据形态学特征鉴定鼠种。通过问卷调查和实地观察收集与鼠密度相关的潜在因素数据。使用EpiData软件建立数据集，并在R软件下用 hurdle回归模型进行分析。
800户家庭共捕获鼠类421只，分属2目2科6属9种。黄胸鼠为优势鼠种（66.03%）。最终的hurdle回归模型显示，家庭成员受教育程度高且垃圾外置的家庭捕获鼠类的概率下降50%-68%；傣族和彝族家庭捕获鼠类的概率增加2.16-2.87倍；观察到有鼠活动或房屋周边种植蔬菜的家庭捕获鼠类的概率增加1.54-1.59倍；认为鼠类数量多的家庭捕获鼠类的概率及捕获鼠类数量分别增加1.59倍和1.84倍。水泥或瓷砖地面房屋捕获的鼠类数量增加3.62倍。
滇西开展鼠传疾病调查地区的家庭鼠密度似乎与社会经济状况、人为干预及生态环境密切相关。为有效控制鼠密度，需考虑这些因素。
