Table 2.

Meta-regression table of Potential Modifiers

Risk factors studied	No. of studies	P-value	regression coefficient [β]
Hospital Length of Stay	5	0.87	− 0.0009
ICU Length of Stay	6	0.73	− 0.0009
Pre-ECMO Factors
CPR	5	0.51	− 0.0025
% Renal Replacement Therapy	7	0.77	0.0003
Lactate	4	0.89	− 0.0019
ECMO Factors
ECMO duration	8	0.96	0.022