Subgroup severity | Overall | CCP group | Control B | OR (95% CI) | P value |
Ventilatory support | (n=68) 25.0 (15.8, 44.5) | (n=34) 23.5 (16.0, 64.3) | (n=34) 28.0 (15.8, 44.0) | 1.01 (0.99 to 1.03) | 0.33 |
ECMO support | 28.5 (19.3, 45.8) | 28.0 (18.0, 55.0) | 31.0 (21.0, 43.0) | 1.01 (0.98 to 1.05) | 0.52 |
LOS in ICU | 20.5 (13.3, 33.5) | 21.0 (13.0, 32.8) | 20.5 (14.3, 33.5) | 1.01 (0.99 to 1.03) | 0.60 |
LOS in hospital | 27.5 (16.5, 48.3) | 28.5 (17.0, 47.3) | 27.5 (12.5, 47.5) | 1.01 (0.99 to 1.03) | 0.23 |
30 days in-hospital mortality, n (%) | 17 (25.0) | 9 (26.5) | 8 (23.5) | 1.12 (0.34 to 3.79) | 1 |
Non-mechanically ventilated | (n=12) | (n=6) | (n=6) | ||
Ventilatory support | N/A | N/A | N/A | N/A | N/A |
ECMO support | N/A | N/A | N/A | N/A | N/A |
LOS in ICU | 6.0 (4.5, 6.0) | 6.0 (5.5, 7.0) | 4.0 (3.0, 5.0) | 1.83 (0.78 to 9.76) | 0.30 |
LOS in hospital | 11.0 (7.0, 17.0) | 17.0 (13.3, 17.8) | 7.5 (6.3, 9.5) | 1.43 (1.06 to 2.39) | 0.07 |
30 days in-hospital mortality, n (%) | N/A | N/A | N/A | N/A | N/A |
Mechanically ventilated | (n=34) | (n=17) | (n=17) | ||
Ventilatory support | 18.0 (13.0, 28.8) | 18.0 (13.0, 25.0) | 18.0 (7.0, 31.0) | 1.01 (0.97 to 1.05) | 0.64 |
ECMO support | N/A | N/A | N/A | NA | NA |
LOS in ICU | 18.0 (13.0, 25.3) | 18.0 (13.0, 26.0) | 20.0 (10.0, 23.0) | 1.00 (0.96 to 1.05) | 0.98 |
LOS in hospital | 27.0(15.5, 39.5) | 27.0 (17.0, 41.0) | 27.0 (15.0, 37.0) | 1.01 (0.97 to 1.04) | 0.68 |
30 days in-hospital mortality, n (%) | 13 (38.2) | 7 (41.2) | 6 (35.3) | 1.16 (0.27 to 5.17) | 1 |
ECMO | (n=22) | (n=11) | (n=11) | ||
Ventilatory support | 45.0 (31.0, 67.8) | 65.0 (29.5, 70.5) | 44.0 (32.5, 54.5) | 1.02 (0.99 to 1.07) | 0.26 |
ECMO support | 28.5 (19.3, 45.8) | 28.0 (18.0, 55.0) | 31.0 (21.0, 43.0) | 1.01 (0.98 to 1.05) | 0.52 |
LOS in ICU | 36.5 (25.0, 63.8) | 38.0 (25.0, 70.0) | 35.0 (25.5, 50.0) | 1.02 (0.99 to 1.06) | 0.29 |
LOS in hospital | 50.5 (31.3, 69.8) | 68.0 (29.0, 88.5) | 48.0 (36.0, 59.0) | 1.02 (0.99 to 1.06) | 0.25 |
30 days in-hospital mortality, n (%) | 4 (18.2) | 2 (18.2) | 2 (18.2) | 1.00 (0.06 to 16.14) | 1 |
Values are number of days as median (IQR).
Analysis of statistically significant differences between groups performed using an OR test with Wald 95% CIs.
CCP, convalescent plasma; ECMO, extracorporeal membrane oxygenation; ICU, intensive care unit; LOS, length of stay; N/A, not available.