Fig 1.
General workflow at the UMMC COVID-19 operations room.
*PUS, Person Under Surveillance.
Fig 2.
Surveillance flow chart and total HCWs for the study.
The surveillance system was only meant for HCWs with work-related exposure. HCWs with community exposure were under the surveillance of the District Health Office. *HCW, healthcare worker; UMMC, University Malaya Medical Centre; RT-PCR, reverse transcriptase-polymerase chain reaction.
Table 1.
Baseline characteristics for all HCW who had work-related exposure (n = 1,174).
Table 2.
Surveillance variables for all HCWs who had work-related exposure (n = 1,174).
Table 3.
Univariable analysis for baseline characteristics and surveillance variables (n = 1,174).
Table 4.
Cross-tabulation of risk category and RT-PCR results (n = 1,174).