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Table 2 Laboratory examination and CT radiographic characteristics

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

CharacteristicsGroup AGroup BGroup A + BGroup C
Laboratory examinationa
 Hemoglobin count increase (↑)2/43 (5%)2/7 (29%)4/50 (8%)6/26 (23%)
 Hemoglobin count normal36/43 (83%)4/7 (57%)40/50 (80%)18/26 (69%)
 Hemoglobin count decrease (↓)5/43 (12%)1/7 (14%)6/50 (12%)2/26 (8%)
 C-reactive protein level increase (↑)10/43 (23%)0/7 (0%)10/50 (20%)8/26 (31%)
 C-reactive protein level normal33/43 (77%)7/7 (100%)40/50 (80%)18/26 (69%)
 Platelet count increase (↑)1/43 (2%)1/7 (14%)2/50 (4%)1/26 (4%)
 Platelet count normal35/43 (82%)6/7 (86%)41/50 (82%)18/26 (69%)
 Platelet count decrease (↓)7/43 (16%)0/7 (0%)7/50 (14%)7/26 (27%)
 Lymphocyte count increase (↑)2/43 (5%)2/7 (29%)4/50 (8%)2/26 (8%)
 Lymphocyte count normal34/43(79%)4/7 (57%)38/50 (76%)18/26 (69%)
 Lymphocyte count decrease (↓)7/43 (16%)1/7 (14%)8/50 (16%)6/26 (23%)
 Blood leukocyte count increase (↑)2/43 (5%)0/7 (0%)2/50 (4%)1/26 (4%)
 Blood leukocyte count normal23/43 (53%)6/7 (86%)29/50 (58%)13/26 (50%)
 Blood leukocyte count decrease (↓)18/43 (42%)1/7 (14%)19/50 (38%)12/26 (46%)
CT radiographic characteristics
 Overall patients with CT abnormalities43/43 (100%)0/7 (0%)43/50 (86%)26/26 (100%)
 Ground-glass opacity29/43 (67%)0/7 (0%)29/50 (58%)21/26 (81%)
 Local patchy shadowing16/43 (37%)0/7 (0%)16/50 (32%)7/26 (27%)
 Bilateral patchy shadowing9/43 (21%)0/7 (0%)9/50 (18%)5/26 (19%)
 Interstitial abnormalities3/43 (7%)0/7 (0%)3/50 (6%)0/26 (0%)
 Pleural fluid1/43 (2%)0/7 (0%)1/50 (2%)0/26 (0%)
 Lymphadenopathy0/43 (0%)0/7 (0%)0/50 (0%)0/26 (0%)
Lesion characteristics and locationb
 Subpleural41/43 (95%)0/7 (0%)41/50 (82%)21/26 (81%)
 Parallel to the pleura21/43 (49%)0/7 (0%)21/50 (42%)10/26 (38%)
 Vascular thickening shadowing10/43 (23%)0/7 (0%)10/50 (20%)10/26 (38%)
 Upper lobe of the lung22/43 (51%)0/7 (0%)22/50 (44%)14/26 (54%)
 Middle lobe of the lung9/43 (21%)0/7 (0%)9/50 (18%)6/26 (23%)
 Lower lobe of the lung28/43 (65%)0/7 (0%)28/50 (56%)19/26 (73%)
 Posterior segment of lower lung lobes22/43 (51%)0/7 (0%)22/50 (44%)12/26 (46%)
  1. aData from the first laboratory examination of the patient admission. The normal range of laboratory examination is the standard of Reference Range Values for Pediatric Care 2nd ed [31] released by the American Academy of Pediatrics
  2. bHow many patients have the following lesion location