Factors associated with the recurrence of dengue fever in villages in Chiang Rai, Thailand: A community-based case-control study

Abstract

Purpose: The purpose of this paper is to determine the factors associated with DF occurrence in recurrence villages in Chiang Rai, Thailand. Design/methodology/approach: A case-control study was conducted between June 2017 and December 2017. A validated questionnaire was used to detect the factors associated with recurrence of DF. ?2 and logistic regression were used to detect the associations between variables at a=0.05. Findings: In total, 213 cases and 436 controls were recruited into the analysis. Cases were recruited from 20 DF recurring villages, while controls were recruited from 20 non-DF recurring villages in Chiang Rai province. At community level, three variables were associated with recurrence of DF; size of the village (p=0.007), number of villagers (p=0.009), tribe (p=0.043) and distance to a hospital (p=0.003). Three variables were associated with DF at personal and family levels in multivariate model: children whose parents worked as daily employees, and government officers and traders were more likely to have DF 1.56 (95%CI=1.22–2.48) and 4.31 (95%CI=4.66–9.38) times greater than of those whose parents’ worked as agriculturists, respectively; children aged less than one year were 2.89 (95%CI=2.17–4.33) times more likely to have DF than those aged=6 and children who were under standard growth and over standard growth were more likely to have DF than those standard growth 1.61 (95%CI=1.18–2.53) and 7.33 (95%CI=4.39–10.37) times, respectively. Originality/value: This is the original research article which was conducted in detecting the factors associated with recurrence of DHF in Northern Thailand.