A Study of Meteorological Factors Associated with COVID-19 Cases in Selangor, Malaysia

Tan, Yi Huan (2022) A Study of Meteorological Factors Associated with COVID-19 Cases in Selangor, Malaysia. [Project Paper] (Submitted)

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Abstract

Several studies have examined the relationship between meteorological factors and COVID-19 infection. It has been discovered that different climates in different locations have a different impact on COVID-19 cases. Therefore, it is essential to establish a location-specific study of meteorological factors and COVID-19 cases. Local researchers in Malaysia have studied the relationship between meteorological factors and COVID-19 cases in Kuala Lumpur and Malaysia as a whole. Such studies must also be established in the most populous state in Malaysia, Selangor. Objective: This study aims to evaluate the relationship between the meteorological factors and the daily new COVID-19 cases in Selangor, Malaysia. Dew point, temperature, relative humidity, precipitation, and wind speed are the meteorological factors investigated in this study. Methodology: Kendall rank correlation analysis and cross-correlation analysis were used to control for collinearity and lag effects. Negative binomial (NB) model and zero-inflated negative binomial (ZINB) model were used to estimate the effect of meteorological factors on daily new COVID-19 cases, taking into account the overdispersion and zero-inflation of the dependent variable. All significant meteorological factors were fitted in the model. The best model was selected based on Akaike information criterion (AIC). Backward elimination is then performed in the selected multivariable model to select the most significant meteorological factors and optimize the model. Results: ZINB provides the best fitting with the lowest AIC value. Temperature, relative humidity, dew point, and wind speed significantly negatively correlated with COVID-19 cases, while precipitation was not significantly correlated with COVID- 19 cases. However, only dew point at lag 0, lag 2, lag 10, and lag 12, wind speed at lag 9, lag 10, lag 12, lag 13, and lag 14 had a significant effect on the daily new COVID-19 cases. Discussion: This study demonstrated the effect of meteorological factors on daily new confirmed cases in Selangor, Malaysia. The results showed consistency and contradictions with the previous studies conducted in Malaysia. Conclusion: The findings from this study provide new insight into the relationship and lag effects between meteorological factors and daily new COVID-19 cases in Selangor, Malaysia. The government may take meteorological factors into considerations when making policies and allocating resources.

Item Type:	Project Paper
Faculty:	Faculty of Medicine and Health Science
Depositing User:	Ms. Nor Safa'aton Saidin
Date Deposited:	22 Aug 2023 07:03
Last Modified:	22 Aug 2023 07:03
URI:	http://psaspb.upm.edu.my/id/eprint/1389

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