Relationship between Rainfall and Rainy Days with Dengue Hemorrhagic Fever Incidence in Manado City, North Sulawesi, Indonesia

Abstract

AIM: The aim research was to analyze the association between rainfall and rainy days with dengue hemorrhagic fever incidence in Manado city, North Sulawesi, Indonesia. METHODS: The research design used analytical descriptive with a cross-sectional survey approach. Data were analyzed using the Spearman rank test. RESULT: The mean of rainfall was 192.7 mm, SD 175.1 mm, and range 10−544 mm. The mean of rainy days was 15 days, SD 7.7 days, and range 2−29 days. The mean of DHF incidence was 49.3 cases, SD 115.7 cases, and range 5−409 cases. There was a significant and strong positive correlation (p = 0.029 and r = 0.626) between rainfall and the incidence of DHF. There was a significant and moderate positive correlation (p = 0.044 and r = 0.588) between rainy days and the incidence of DHF. CONCLUSION: The higher the rainfall, the higher the incidence of DHF. The higher the rainy days, the higher the incidence of DHF in Manado city, North Sulawesi, Indonesia during 2019.