Treatment	RR	95% CI lower limit	95% CI upper limit	z	P
Dobutamine	0.7825	0.3112	1.9672	‐0.52	0.6020
Levosimendan	0.8277	0.4147	1.6517	‐0.54	0.5916
Levosimendan + Dobutamine	0.6476	0.2613	1.6051	‐0.94	0.3481
Milrinone	1.4834	1.0357	2.1247	2.15	0.0315
Milrinone + Dobutamine	1.1607	0.4864	2.7701	0.34	0.7370
Milrinone LD	1.2562	0.5514	2.8619	0.54	0.5872
Placebo	0.8286	0.5190	1.3230	‐0.79	0.4310