COVID-19 has significantly impacted global mortality, particularly among those aged 45–84 years. Worldwide deaths exceeded official reports, reaching at least 3 million in 2020. In the Philippines, mortality increased in 2021 but declined by 2022. Key factors include comorbidities like diabetes and hypertension. Limited research, resources, and healthcare challenges hinder localized mortality prediction and management efforts.

This study analyzed 234 randomly selected COVID-19 patients admitted between April 1, 2020 and April 1, 2021, using quantitative methods, descriptive and predictive designs, and advanced statistical techniques.

Most COVID-19 patients in our study were older adults, predominantly female, with non-severe cases and mild PaO2/FiO2 ratios, indicating mild respiratory distress. Comorbidities were uncommon, but when present included hypertension and diabetes, affecting hospitalization length. Patients generally had low Sequential Organ Failure Assessment (SOFA) scores and were linked to better outcomes. Most recovered and were discharged, with a mortality rate lower in the Philippines compared to global figures. Severe cases were more common in older adults and males, often requiring mechanical ventilation. SOFA scores and PaO2/FiO2 ratios correlated with severity, while comorbidities prolonged hospital stays. Hospitalization averaged 11.3 days, shorter than global durations.

COVID-19 patients with two or more accompanying diseases are likely to stay longer in the hospital. On the other hand, patients on mechanical ventilation support are likely to have shorter hospital stay.