marginal significanceP = 0.052
The results indicated that being ≥ 65 years old (OR, 2.725; 95% CI: 1.317–5.636; P = 0.007), male (OR, 1.878; 95% CI: 1.002–3.520; P = 0.049), having comorbid diabetes (OR, 3.314; 95% CI: 1.126–9.758; P = 0.030) or chronic cardiac disease (OR, 3.533; 95% CI: 0.989–12.642; P = 0.052, marginal significance), and presenting with cough (OR, 3.427; 95% CI: 1.752–6.706; P < 0.001) and/or diarrhea (OR, 2.629; 95% CI: 1.109–6.231; P = 0.028) on admission were significantly positively correlated with severe COVID-19.