Objective To investigate dengue fever-related knowledge level and preventive behaviors and their influencing factors in the Dai people in China-Myanmar border areas, and to provide a scientific basis for community-based dengue fever prevention and control in the border areas. Methods From December 2017 to April 2018, dengue fever-related knowledge level and preventive behaviors of the Dai people and the influencing factors were investigated using sampling questionnaire survey (household survey of householders) combined with in-depth interview of key opinion leaders (KOLs) and participatory observation in three types of communities (classified according to the incidence of dengue fever in 2017, i.e., high, medium, and low or none) in Xishuangbanna (XSBN), Yunnan province, China and Shan State Special Region 4 (SR4), Myanmar. The awareness rates were compared using chi-square test, and the influencing factors were analyzed by multivariate logistic regression. Results A total of 259 and 261 questionnaires were completed in XSBN and SR4 of Myanmar, respectively. Eighteen KOLs were interviewed in depth. In XSBN, the proportion of householders who knew that spotted mosquitoes or Aedes mosquitoes are vectors for dengue fever and the proportion of householders who knew that water containers are breeding sites of Aedes mosquitoes and their larvae were 76.08% (95%CI:70.44%-81.23%) and 89.07% (95%CI:84.53%-92.70%), respectively; the proportion of households which were reported to have a habit of turning over pots was 94.64%(95%CI:91.20%-97.01%). In SR4 of Myanmar, the above three proportions were 14.29%(95%CI:10.19%-19.10%), 24.32%(95%CI:19.22%-30.02%) and 72.76%(95%CI:64.44%-79.83%), respectively. The dengue fever-related knowledge level and preventive behavior performance rate of the Dai people were significantly higher in XSBN than in SR4 of Myanmar (χ2=41.004, P<0.001). The results of a logistic regression analysis showed that there were a higher dengue fever vector control performance rate in communities historically struck by dengue fever (OR=23.90, 95%CI:3.07-185.82) and a lower vector control performance rate in households taking agriculture as their main economic source (OR=0.14, 95%CI:0.03-0.63) in XSBN. There was a lower vector control performance rate of households in communities historically struck by dengue fever in SR4 of Myanmar (OR=0.08, 95%CI:0.02-0.36). Age, dengue fever-related knowledge level, and awareness of the disease of householders may also influence preventive behaviors against dengue fever in SR4 (all, P<0.05). Conclusion The Dai people in XSBN have a higher knowledge level of dengue fever, but their preventive behaviors need to be maintained by strengthened management. The preventive behaviors of the inhabitants in SR4 of Myanmar need to be boosted by further communication for behavioral change in addition to reinforced organizational safeguard.
LIU Hui, XU Jian-wei, XIA Min, YANG Ming-dong, LI Jian-xiong, YIN Yi-jie, DONG Xin-wei
. A comparative study of dengue fever-related knowledge level and preventive behaviors and their influencing factors in the Dai people between Xishuangbanna, Yunnan, China and Shan State Special Region 4, Myanmar[J]. Chinese Journal of Vector Biology and Control, 2020
, 31(1)
: 57
-61
.
DOI: 10.11853/j.issn.1003.8280.2020.01.012
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