@article{Kuay_Mohd Hanafiah_Cheng_Ying_Azlan Kassim_Lin_Abu Sapian_Eliana Musa_Sanaudi_Yusof_2021, title={Factors Associated with Asymptomatic COVID-19 Patients in Petaling District, Selangor, Malaysia}, volume={11}, url={https://spaj.ukm.my/ijphr/index.php/ijphr/article/view/317}, abstractNote={<p><strong>Introduction:</strong> The rapid spread of the COVID-19 worldwide has led the World Health Organization (WHO) to declare COVID-19 outbreak as a pandemic on March 11, 2020. This study aims to determine the factors associated with asymptomatic COVID-19 patients in Petaling District, Selangor, Malaysia.</p> <p><strong>Methods:</strong> Data on COVID-19 patients were extracted from the database of confirmed cases in Petaling District Health Office, Selangor, Malaysia from 3rd February 2020 to 30th April 2020. An asymptomatic laboratory-confirmed case is a person infected with COVID-19 who does not develop any symptoms. The study included socio-demographic variables, the detailed information on clinical manifestations and co-morbidity of the patients. Descriptive and multivariable logistic regression analyses were conducted to determine the factors associated with asymptomatic patients.</p> <p><strong>Results:</strong> The overall COVID-19 patients in Petaling District were 434. Approximately 70% (N = 292) of the patients were symptomatic while 32.7% (N = 142) were asymptomatic. Multivariable logistic regression analyses revealed that factors significantly associated with asymptomatic patients were age below 40 years old (aOR: 1.79, 95% CI 1.11, 2.86), non-Malaysians (aOR: 3.22, 95% CI 1.44, 7.19) and local cases (aOR: 2.51, 95% CI 1.42, 4.42). Gender, ethnicity, co-morbidity and township were not significantly associated with asymptomatic patients.</p> <p><strong>Conclusion:</strong> Approximately one-third of COVID-19 patients were asymptomatic and the risk factors identified were younger age, non-Malaysians and local cases. Rigorous epidemiological investigation and laboratory examinations are helpful in identifying COVID-19 cases among these group of people who are asymptomatic.</p> <p><strong> </strong><strong>Keywords:</strong> COVID-19 - asymptomatic - pandemic - Malaysia</p>}, number={2}, journal={International Journal of Public Health Research}, author={Kuay, Lim Kuang and Mohd Hanafiah, Ainul Nadziha and Cheng, Lee Soo and Ying, Chan Ying and Azlan Kassim, Mohd Shaiful and Lin, Chong Zhuo and Abu Sapian, Roslinda and Eliana Musa, Nurul Syarbani and Sanaudi, Ridwan and Yusof, Mohamed Paid}, year={2021}, month={Aug.} }