Table 3.

Characteristics of first hemodialysis sessions at T0

	IHI	No IHI	P
Number of sessions	31	41
Organ support therapy at T0
Invasive mechanical ventilation	24 (77%)	24 (59%)	0.13
Vasopressors	25 (81%)	19 (46%)	0.0037
Cardiovascular SOFA score ≥ 1 at T0	27 (87%)	21 (51%)	0.0021
Tissue perfusion parameters at T0
Lactate > 2 mmol/L	21 (68%)	12 (29%)	0.0018
Index capillary refill time ≥ 3 s	17 (55%)	6 (15%)	0.0004
Hemodialysis settings
Duration (hours)	4 [4-4]	4 [4-4]	0.86
Ultrafiltration	8 (26%)	17 (41%)	0.21

Quantitative variables are expressed as median [25–75th percentiles] and qualitative variables as number (%)