3.3 Related factors of severe pneumonia in pediatric inpatients prior to and during the COVID-19 pandemic by univariate analysis
Through univariate analysis, related factors of severe pneumonia were explored among the patients prior to and during the COVID-19 pandemic respectively. As shown in table 3, younger age, longer hospital stay, hospitalization in spring and insufficiency of Ca and Zn had significant correlations with severe pneumonia among the children in 2019 (P < 0.05). However, in 2020, only younger age and longer hospital stay were found associated with severe pneumonia (P < 0.05).