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Table 1 Demographics and characteristics of patients

From: A single-center, retrospective study of COVID-19 features in children: a descriptive investigation

CharacteristicsGroup AGroup BGroup A + BGroup C
Age, years3.0 (0.9–7.5)1.0 (1.0–4.5)2.5 (0.9–7.0)2.5 (1.2–9.8)
 > 2.522/43 (51%)3/7 (43%)25/50 (50%)13/26 (50%)
 ≤ 2.521/43 (49%)4/7 (57%)25/50 (50%)13/26 (50%)
Sex
 Male23/43 (53%)5/7 (71%)28/50 (56%)14/26 (54%)
 Female20/43 (47%)2/7 (29%)22/50 (44%)12/26 (46%)
Type of care
 Discharged patients33/43 (77%)5/7 (71%)38/50 (76%)26/26 (100%)
 Hospitalization duration11.0 (9.0~13.0)13.0 (7.0~14.0)11.0 (8.2~13.8)10.5 (8.0~12.0)
Clinical status
 Asymptomatica0/43 (0%)2/7 (29%)2/50 (4%)0/26 (0%)
 Very mild0/43 (0%)5/7 (71%)5/50 (10%)0/26 (0%)
 Mild41/43 (95%)0/7 (0%)41/50 (82%)26/26 (100%)
 Severe0/43 (0%)0/7 (0%)0/50 (0%)0/26 (0%)
 Critically ill2/43 (5%)0/7 (0%)2/50 (4%)0/26 (0%)
Symptoms
 Fever29/43 (67%)3/7 (43%)32/50 (64%)21/26 (81%)
 Cough21/43 (49%)1/7 (14%)22/50 (44%)19/26 (73%)
 Myalgia or fatigue2/43 (5%)0/7 (0%)2/50 (4%)0/26 (0%)
 Sore throat (pharyngalgia)1/43 (2%)0/7 (0%)1/50 (2%)0/26 (0%)
 Diarrhea3/43 (7%)0/7 (0%)3/50 (6%)0/26 (0%)
 Abdominal pain2/43 (5%)0/7 (0%)2/50 (4%)0/26 (0%)
 Rhinorrhea7/43 (16%)1/7 (14%)8/50 (16%)2/26 (8%)
 Loss of appetite2/43 (5%)0/7 (0%)2/50 (4%)0/26 (0%)
 Chest pain0/43 (0%)0/7 (0%)0/50(0%)1/26 (4%)
 Intussusception1/43 (2%)0/7 (0%)1/50 (2%)0/26 (0%)
 No symptoms4/43 (9%)2/7 (29%)6/50 (12%)0/26 (0%)
 Mortality0/43 (0%)0/7 (0%)0/50 (0%)0/26 (0%)
Comorbidity
 Cardiac damage4/43 (9%)1/7 (14%)5/50 (10%)3/26 (12%)
 Appendicitis1/43 (2%)0/7 (0%)1/50 (2%)0/26 (0%)
 Foreign body in bronchus1/43 (2%)0/7 (0%)1/50 (2%)0/26 (0%)
 Mycoplasma infection5/43 (12%)0/7 (0%)5/50 (10%)11/26 (42%)
 Respiratory syncytial virus infection1/43 (2%)0/7 (0%)1/50 (2%)0/26 (0%)
 Renal failure1/43 (2%)0/7 (0%)1/50 (2%)0/26 (0%)
 Intestinal necrosis in MODS1/43 (2%)0/7 (0%)1/50 (2%)0/26 (0%)
  1. aNo clinical symptoms and no abnormal CT findings