• Asraf Qamruddin Manjung District Health Office, Sitiawan, Perak, Malaysia
  • Sophia Rasheeqa Ismail Institute for Medical Research, National Institutes of Health, Ministry of Health Malaysia
  • Awanis Sharif Kinta District Health Office, Kinta, Perak, Malaysia
  • Reza Murad Qamruddin Melaka Hospital, Melaka, Malaysia
Keywords: Covid-19, Asymptomatic, Infectious Disease


We aimed to determine the prevalence, characteristics, and risk factors associated with asymptomatic COVID-19 cases in a district setting in Malaysia. We included all confirmed COVID-19 cases within the district from inception to March 2021. Out of 3,051 confirmed COVID-19 cases, 1,862 (61.0%) were asymptomatic. Asymptomatic cases were mostly men, younger, non-Malaysians and had fewer comorbidities. The highest prevalence of asymptomatic cases was from prisons and factories. Male gender (adjusted OR 2.02; 95%CI 1.69 – 2.43), non-Malaysians (adjusted OR 20.00; 95%CI 14.75 – 27.64), current smoking status (adjusted OR 12.06; 95%CI 6.74 – 23.94), prisoners (adjusted OR 19.02; 95%CI 12.30 – 30.57), and higher CT values were significantly associated with asymptomatic COVID-19 infection. To ensure more targeted public health prevention and infection containment strategies, authorities and employers should be more aware of their local population's heterogeneity, risk factors, and unique conditions.


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How to Cite
Qamruddin, A., Ismail, S. R., Sharif, A., & Qamruddin, R. M. (2022). FACTORS ASSOCIATED WITH ASYMPTOMATIC COVID-19 INFECTION IN A DISTRICT SETTING IN MALAYSIA. Malaysian Journal of Public Health Medicine, 22(1), 28-37. https://doi.org/10.37268/mjphm/vol.22/no.1/art.1457