Correlation of Free Larvae Index and Population Density With Dengue Fever Incidence Rate

Abstract

Introduction: Dengue Hemorrhagic Fever (DHF) is a disease caused by the dengue virus that infects the body. Dengue is a common viral infection in warm tropical climates. The infection is caused by one of four closely related dengue viruses. The disease now plagues many countries and even more than 100 countries within the WHO, including Africa, the Americas, the Eastern Mediterranean, Southeast Asia, and the Western Pacific. The Americas, Southeast Asia, and the Western Pacific are the most severely affected regions, with Asia representing 70% of the global disease burden. The high incidence rate of DHF in various regions of Indonesia is the background by several factors, one of which is the density of the seaters. The aim of this study was to analyze the correlation between population density and larvae free index and Incidence Rate (IR) Dengue Hemorrhagic Fever (DHF) in Blitar Regency in 2013-2017. Methods: The data were analyzed quantitatively using Spearman correlation tests to analyze relationships between variables. Result: The results of the analysis found there was no correlation between dengue fever incidence rate and larvae free index (p = 0.603 r = -0.117), and there was a correlation between the incidence rate of dengue fever and population density (p = 0.002 r = 0.619). Conclusion: High population density is a risk factor for DHF events in Blitar Regency, so there needs to be an anticipation of preventive measures such as the implementation of 3M and counseling of the impact of high population density.

An Epidemiological Overview of Dengue Hemorrhagic Fever (Dhf) Cases in Kediri Regency During 2017-202

“…These results are in line with earlier research carried out in the Blitar District between 2013 and 2017, which found no correlation between the incidence rate of DHF and LFI (p=0.06) (25). On a nationwide level in Indonesia, other similar studies also showed no significant correlation between the incidence rate of DHF and LFI (p=0.42) (25). Research in the East Lombok District revealed contradictory findings; a high incidence rate of DHF was associated with a low LFI value (26).…”

“…However, there is one circumstance in which the incidence of DHF increases as the LFI value decreases. These results are in line with earlier research carried out in the Blitar District between 2013 and 2017, which found no correlation between the incidence rate of DHF and LFI (p=0.06) (25). On a nationwide level in Indonesia, other similar studies also showed no significant correlation between the incidence rate of DHF and LFI (p=0.42) (25).…”

Overview of Dengue Fever (DHF) incidence based on population density in Indonesia

“…Densely populated environments and their association with dengue cases are also related to the flying ability of Aedes aegypti mosquitoes as vectors, which can reach distances of less than 50 meters. This phenomenon may increase the risk of spreading DHF in densely populated environments [11].…”

Socio-economic factors and its influence on the association between temperature and dengue incidence in 61 Provinces of the Philippines, 2010–2019

“…Similar to previous studies, higher population density was associated with a visually higher temperature-dengueran association than low population dense areas [ 33 , 55 ]. In Indonesia, Nuranisa, et al [ 56 ] noted a positive correlational association between dengue incidence and population density. These highly dense areas provide suitable conditions for vector proliferation and subsequent disease transmission [ 57 ].…”