Table 1.

Table of studies with positive association between convalescent plasma therapy administration and disease outcome

Study	Convalescent plasma administration and disease outcome
[2]	Mortality rate 8.7% [CI 8.3-9.2%] (plasma received within 3 days of diagnosis) vs. 11.9% [CI 11.4-12.3%] P < 0.001 (plasma received after 4 days)
[4]	Lower mortality within 30 days when administered high-titer convalescent plasma vs. low-titer (relative risk 0.66, CI 0.48-0.91)
[6]	Relative risk reduction of developing severe respiratory disease by 48% (relative risk 0.52 [CI 0.29-0.94] P = 0.03)
[7]	Lower mortality within 60 days when administered high-titer convalescent plasma therapy within 72 h of admission vs. controls (unadjusted hazard ratio 1.93 P = 0.02)