Correlation between incidence of dengue and climatic factors in the Philippines: An ecological study
- Author:
Ann Kashmer D. Yu
;
Sophia Isabel E. Ytienza
;
Airees Mae D. Yu
;
Vincent Christopher S. Yu
;
Keith Alexius K. Wangkay
;
Maria Antonia R. Wong
;
Marielle Alyanna B. Zamudio
;
Eljine Mae T. Zhang
;
Wally D. Yumul
;
Zakhira Maye R. Zipagan
;
Arianna Krystelle R. Yaranon
;
Jake Byron C. Zapanta
;
Gija B. Ysip
;
Catherine Danielle Duque-Lee
- Publication Type:Journal Article
- Keywords:
rainfall;
correlation
- MeSH:
Dengue;
humidity;
temperature
- From:
Health Sciences Journal
2020;9(2):60-68
- CountryPhilippines
- Language:English
-
Abstract:
INTRODUCTION:Dengue continues to be a major health concern in the Philippines. This study aimed to establish trends and correlations between the incidence of dengue and rainfall, humidity and temperature, respectively, in the different regions.
METHODS:Using 2018 records obtained from DOH and PAGASA, correlations were made between monthly
measurements of climatic factors and the incidence of dengue using Pearson’s r, while maps and interpolations were generated using quantum geographical information system software.
RESULTS:There was a significant positive but weak correlation between the incidence of dengue and rainfall
(r = 0.379, 95% CI 0.255, 0.491; p < 0.001) and humidity (r = 0.215, 95% CI 0.080, 0.342; p = 0.002).
There was a significant negative but weak correlation between the incidence of dengue and temperature (r = -0.145, 95% CI -0.277, -0.008; p = 0.039). A strong positive correlation was noted between the incidence of dengue, and rainfall and humidity, respectively, in several regions. Multiple regression indicates that rainfall, humidity and temperature are poor predictors of the incidence of dengue (R2 = 0.1436, 0.0461 and 0.0209, respectively).
CONCLUSION:This study showed overall a significant but weak correlation between an increased incidence
of dengue and heavy rainfalls and high relative humidity, and a weak negative correlation for temperature. A high positive correlation of an increased incidence of dengue and heavy rainfalls and high relative humidity was observed in several regions.
- Full text:UERM HSJ 9.2 July-Dec 2020_30-end.pdf
