A cross-sectional study on clinical characteristics and severity of children with COVID-19 admitted to a teaching institute in North India

SARS-CoV-2 infection presentation in children is usually milder than in adults but can be severe and fatal as well. Data on the pediatric population regarding severity and clinical presentation are still limited, and there is a need to have a better understanding of clinical features, severity, and laboratory parameters. To document clinical and laboratory characteristics and outcomes of children with SARS-CoV-2 in a low-middle-income country and to evaluate clinicodemographic factors and biochemical markers associated with severity and mortality. A hospital-based cross-sectional study was conducted among 112 COVID-19-positive children at a designated Level-3 center in North India. Clinical characteristics, laboratory parameters, and severity of COVID-19 cases as well as factors associated with the severity of the disease, were analyzed by descriptive statistics and a Chi-square test. The adolescent age group (age 12-18 years) was affected most (64.3%). Male patients accounted for 56.3% of total cases. Fever was the most common symptom (41.1%) followed by cough. Presenting complaints were highest from the respiratory system (32.1%) followed by the gastrointestinal (8.9%) and the neurological system (7.1%). Majority of patients had mild disease (87%) while 13% had the moderate-severe disease. Spo < 95% ( = 0.00001), neutrophilia ( < 0.000001), lymphopenia ( < 0.000001), elevated values of C-reactive protein ( < 0.00001), Interleukin-6 ( = 0.002), D- dimer ( = 0.00014) and respiratory symptoms as presenting complaints ( < 0.000001) were found to be significantly associated with severity of disease. The male and adolescent age group was affected most. Presenting complaints were highest from the respiratory system. Unusual presentation may have gastrointestinal or neurological presentation. Most children with COVID-19 had mild disease. Moderate to severe disease was not uncommon. Factors including neutrophilia, lymphopenia, elevated lab values of C-reactive protein, D-dimer, and interleukin-6 had a significant association with the severity of the disease. These biomarkers can help predict the severity of the disease.