Characteristic N Patient characteristics by clinical syndrome p-value2
Overall, N = 5631 COVID-19 with respiratory symptoms, N = 2171 Non-specific signs and symptoms attributed to COVID-19, N = 1231 MIS-C, N = 1711 Screening and/or symptoms not attributed to COVID-19, N = 521

Age

560 4.2 (0.2 - 11.4) 0.7 (0.1 - 8.8) 0.2 (0.1 - 4.7) 9.9 (6.4 - 12.0) 6.7 (1.4 - 12.6) <0.001

Gender

549 0.2

Male

308 (56%) 113 (53%) 66 (55%) 103 (63%) 26 (51%)

Female

241 (44%) 101 (47%) 54 (45%) 61 (37%) 25 (49%)

BMI (z-score) 3

312 0.04 (-0.95 - 1.08) 0.03 (-0.93 - 1.13) -0.56 (-1.96 - 0.71) 0.17 (-0.78 - 1.21) 0.04 (-0.92 - 1.05) 0.14

Hospital Admission

533 482 (90%) 180 (86%) 99 (87%) 156 (98%) 47 (92%) <0.001

Length of Stay (d)

465 3 (1 - 7) 2 (1 - 5) 1 (1 - 4) 6 (4 - 8) 4 (1 - 8) <0.001

ICU admission

475 116 (24%) 17 (9.6%) 5 (5.2%) 90 (58%) 4 (8.7%) <0.001

Length of Stay ICU (d)

112 4 (2 - 6) 7 (4 - 19) 3 (3 - 10) 4 (2 - 5) 1 (1 - 13) <0.001

Lymphocyte count available

563 <0.001

Yes

334 (59%) 104 (48%) 65 (53%) 138 (81%) 27 (52%)

No

229 (41%) 113 (52%) 58 (47%) 33 (19%) 25 (48%)

Lymphopenia

334 205 (61%) 56 (54%) 44 (68%) 94 (68%) 11 (41%) 0.011
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