Risk factors for COVID-19 symptom severity across clinical categories among hospitalised patients in Kuala Lumpur, Malaysia: a prospective cohort study

Key Points

• This study aims to identify risk factors associated with COVID-19 symptom severity in hospitalised patients.
• Prospective cohort design
• Analysis of clinical categories of COVID-19 severity
• Monitoring of patient factors including age, symptom clusters, and laboratory markers
• Higher clinical severity linked to increased ICU admission rates
• Age and delta variant infection identified as significant risk factors
• Lymphopenia, hyperglycaemia, and elevated pro-inflammatory cytokines noted in higher-risk patients