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. 2021 May 6;40(10):4179–4189. doi: 10.1007/s10067-021-05754-z

Table 3.

Clinical manifestations of the patients with MIS-C according to age groups

Total Patient <5 years 5-10 years >10 years P value
Clinical Manifestations n=36 (100%) n=9 (25%) n= 14(38.8%) n=13 (36.1%) X2 =0.05
Severity of MIS-C
  Mild 13 (36.1%) 4 (44.4%) 5 (35.7%) 4 (30.7%) 0.805
  Moderate 6 (16.6%) 2 (22.2%) 3 (21.4%) 1 (7.6%) 0.554
  Severe 17 (47.2%) 3 (33.3%) 6 (42.8%) 8 (61.5%) 0.392
Clinical appearance
  Overlapping with KD 25 (69.4%) 6 (66.6%) 12 (85.7%) 7 (53.8%) 0.396
  Overlapping with acute COVID-19 3 (8.3%) - 1 (7.1%) 2 (15.3%) 0.429
  Without overlapping with acute COVID-19 or KD 8 (22.2%) 3 (33.3%) 1 (7.1%) 4 (30.7%) 0.219
Mucocutaneous manifestation 25 (69.4%) 6 (66.6%) 10 (71.4%) 9 (69.2%) 0.276
Gastrointestinal manifestation 24 (66.6%) 4 (44.4%) 8 (57.1%) 12 (92.3%) 0.04‡¥
  Gastroenteritis 10 (27.7%) 2 (22.2%) 3 (21.4%) 5 (38.4%) 0.560
  Hepatitis 9 (25%) 1 (11.1%) 3 (21.4%) 5 (38.4%) 0.320
  Mesenteric lymphadenopathy 5 (13.8%) 1 (11.1%) - 4 (30.7%) 0.011¥
  Ascites 4 (11.1%) - 2 (14.2%) 2 (15.3%) 0.470
Neurological manifestation 14 (38.8%) 4 (44.4%) 6 (42.8%) 4 (30.7%) 0.752
  Headache 3 (8.3%) - - 3 (23%) 0.055
  Agitation 7 (19.4%) 2 (22.2%) 4 (28.5%) 1 (7.6%) 0.380
  Aseptic meningitis 4 (11.1%) 2 (22.2%) 2 (14.2%) - 0.197
Lung involvement 3 (8.3%) - 1 (7.1%) 2 (15.3%) 0.214
  Parenchyma infiltration 3 (8.3%) - 1 (7.1%) 2 (15.3%) 0.429
  Pleural effusion 2 (%5.5) - - 2 (15.3%) 0.154
Haematological involvement 34 (94.4%) 9 (100%) 12 (85.7%) 13 (100%) 0.189
  Thrombocytopenia 10 (27.7%) 3 (33.3%) 3 (21.4%) 4 (30.7%) 0.788
  Lymphopenia 12(33.3%) - 6 (42.8%) 6 (46.1%) 0.049†‡
  D-dimer abnormality 32 (88.8%) 8 (88.8%) 11 (78.5%) 13 (100%) 0.209
  Coagulation disorder 10 (27.7%) 1 (11.1%) 4 (28.5%) 5 (38.4%) 0.308
Prerenal insufficiency 5 (13.8%) 1 (11.1%) 1 (7.1%) 3 (23%) 0.793
Cardiac manifestations 30 (83.3%) 5 (88.8%) 12 (85.7%) 13 (76.9%) 0.022
  Valve insufficiency 25 (69.4%) 5 (55.5%) 9 (85.7%) 11 (84.6) 0.301
  Left ventricular dysfunction 11(30.5%) - 3 (21.4%) 8 (61.5%) 0.01‡¥
  Right ventricular dysfunction 3 (8.3%) - - 3 (23%) 0.062
  Ventricular dilatation with normal EF 5 (13.8%) - 3 (21.4%) 2 (15.3%) 0.343
  Coronary dilatation 4 (11.1%) 1 (7.1%) 3 (23%) 0.199
  Pericardial effusion 3 (8.3%) - 1 (7.1%) 2 (15.3%) 0.429
ECG abnormality 17 (47.2%) 1 (11.1%) 7 (50%) 9 (69.2%) 0.026
  Sinus tachycardia 8 (22.2%) 1 (11.1%) 4 (28.5%) 3 (23%) 0.614
  Incomplete right bundle branch block 5 (13.8%) 1 (11.1%) 2 (14.2%) 2 (15.8%) 0.959
  1° AV block 4 (11.1%) - 1 (7.1%) 3 (23%) 0.199
  ST elevation 1 (2.7%) - - 1 (7.6%) 0.446
  Normal ECG rhythm 19 (52.7%) 8 (88.8%) 7 (50%) 4 (30.7%) 0.026
ICU 4 (11.1%) - - 4 (30.7%) 0.553
  Vasoactive drugs 11 (30.5%) 4 (44.4%) 3 (21.4%) 4 (30.7%) 0.505
  Mechanical ventilation - - - -
  ECMO - - - -

Categorical variables were presented as number and percentage. Age groups were compared with X2 test

p < 0.05; < 5-year-old patients versus between 5- and 10-year-old patients

p < 0.05; > 10-year-old patients versus < 5-year-old patients

¥p < 0.05; > 10-year-old patients versus between 5- and 10-year-old patients