Characteristic N Patient characteristics by clinical syndrome p-value2
Overall, N = 2881 COVID-19 with respiratory symptoms, N = 1081 Non-specific signs and symptoms attributed to COVID-19, N = 551 MIS-C, N = 991 Screening and/or symptoms not attributed to COVID-19, N = 261

Age

286 6.9 (0.3 - 12.8) 2.0 (0.2 - 12.7) 0.2 (0.1 - 10.1) 10.4 (7.1 - 13.3) 6.4 (0.2 - 14.0) <0.001

Gender

285 0.9

Male

167 (59%) 63 (59%) 34 (63%) 56 (57%) 14 (54%)

Female

118 (41%) 44 (41%) 20 (37%) 42 (43%) 12 (46%)

BMI (z-score) 3

167 0.29 (-0.78 - 1.16) 0.15 (-0.77 - 1.07) 0.23 (-1.13 - 1.39) 0.37 (-0.63 - 1.19) 0.43 (-0.16 - 0.85) >0.9

Hospital Admission

278 240 (86%) 85 (79%) 48 (87%) 86 (95%) 21 (84%) 0.022

Length of Stay (d)

234 4 (2 - 7) 3 (1 - 6) 2 (1 - 5) 6 (4 - 8) 3 (2 - 7) <0.001

ICU admission

238 61 (26%) 9 (11%) 2 (4.2%) 48 (56%) 2 (9.5%) <0.001

Length of Stay ICU (d)

61 4 (3 - 6) 6 (4 - 10) 6 (5 - 8) 4 (2 - 5) 24 (13 - 36) 0.11

Lymphocyte count available

288 <0.001

Yes

184 (64%) 60 (56%) 33 (60%) 79 (80%) 12 (46%)

No

104 (36%) 48 (44%) 22 (40%) 20 (20%) 14 (54%)

Lymphopenia

184 108 (59%) 32 (53%) 22 (67%) 48 (61%) 6 (50%) 0.6
3. Roede MJ & van Wieringen JC, bewerking TNO (1985) Growth diagrams 1980: Netherlands third nation-wide survey. Tijdschrift voor Sociale Gezondheidszorg, 63, 1-34.

1 Median (IQR); n (%)

2 Kruskal-Wallis rank sum test; Pearson's Chi-squared test