Environmental, behavioral factors and filariasis incidence in Bintan district, Riau Islands Province

Abstract

Microfilaria rate of filariasis in Bintan District remains high, especially in Teluk Bintan, Teluk Sebong, and Sri Kuala Lobam Subdistricts. This study aimed to determine relation between environmental risk factors (physical, biological, chemical, socio-cultural, economic) and behavioral factors with filariasis incidence. The study was an analytic observational study conducted on May – September 2015 using case control design, which consisted of a total of case as many as 33 filariasis sufferers and a total of control as many as 65 non filariasis sufferers as taken by cluster sampling technique. Population of study was people in Bintan District. Data obtained were then analyzed by using chi square and logistic regression test. Results showed correlation of knowledge (p value= 0.045; OR = 1.365), wire-net use (p value = 0.048; OR = 1.381), stockyard (p value= 0.018; OR = 3.5), swamp (p value = 0.038; OR = 1.358), plantation/forest (p = 0.035; OR = 0.373) and mosquito-net use (p value = 0.036; OR = 1.417) as risk factor of filariasis incidence. In conclusion, variables most related to filariasis incidence in Bintan District are knowledge (OR = 6.154), mosquito-net use (OR = 3.861) and distance to swamp (OR = 3.668).