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Factors Associated With Nosocomial COVID-19 Infection Among Health Care Workers in an Urban-Setting Malaysia Hospital
Jun Fai Yap1,2, Rui Jie Ng1,2, Si Ming Chin1
1Department of Public Health, University Malaya Medical Centre, Kuala Lumpur, Malaysia.
Insights
Most healthcare workers (HCWs) contracted COVID-19 outside the hospital. Factors like female sex, age over 30, full vaccination, and support roles reduced workplace transmission risk.
Area of Science:
- Infectious Diseases
- Occupational Health
- Epidemiology
Background:
- The COVID-19 pandemic posed significant risks to healthcare workers (HCWs).
- Understanding workplace transmission dynamics is crucial for hospital safety.
- Previous studies highlighted various risk factors for HCW infections.
Purpose of the Study:
- To investigate factors associated with COVID-19 transmission among HCWs in a Malaysian tertiary hospital.
- To differentiate between workplace and non-workplace COVID-19 acquisition in HCWs.
- To identify protective and risk factors for in-hospital COVID-19 transmission.
Main Methods:
- Cross-sectional analysis of laboratory-confirmed COVID-19 cases among HCWs.
- Data collected from January 25, 2020, to September 10, 2021.
- Statistical analysis to determine factors associated with workplace transmission.
Main Results:
- 897 HCWs were infected; 37.4% suspected workplace acquisition.
- Lower odds of workplace transmission: female sex, age ≥30, full vaccination, clinical support roles.
- Higher odds of workplace transmission: direct COVID-19 patient care (aOR=3.53).
- Majority of infections originated from non-workplace settings.
Conclusions:
- While most HCW COVID-19 infections occurred outside the hospital, workplace transmission is a significant concern.
- Vaccination, age, sex, and job role influence workplace transmission risk.
- Comprehensive strategies are needed to mitigate both workplace and community-acquired COVID-19 risks among HCWs.
Abstract:
This single-center study aimed to explore the factors associated with coronavirus disease (COVID-19) transmission in a hospital. All laboratory-confirmed COVID-19 cases among health care workers (HCWs) in a tertiary hospital in Malaysia were analyzed cross-sectionally from January 25, 2020, to September 10, 2021. A total of 897 HCWs in the hospital had laboratory-confirmed COVID-19 infection during the study period. Around 37.4% of HCWs were suspected to acquire COVID-19 infection from the hospital workplace. Factors associated with lower odds of workplace COVID-19 transmission were being females, ≥30 years old, fully vaccinated, and working as clinical support staff. Involvement in COVID-19 patient care was significantly associated with higher odds (adjusted odds ratio = 3.53) of workplace COVID-19 transmission as compared with non-workplace transmission. Most HCWs in the tertiary hospital acquired COVID-19 infection from non-workplace settings. During a pandemic, it is important to communicate with HCWs about the risk of both workplace and non-workplace COVID-19 transmission and to implement measures to reduce both workplace and non-workplace COVID-19 transmission.
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