Table 3. Procedural complications and clinical endpoints of the patients.

Variables	Overall (n = 584)	The low HRR group (< 0.74) (n = 226)	The high HRR group (≥ 0.74) (n = 358)	P-value
Data are presented as median (interquartile range) or n (%). HRR: hemoglobin-to-red cell distribution width ratio.
In-hospital mortality	11 (2%)	8 (3.5%)	3 (1%)	0.019
One-month mortality	16 (3%)	13 (6%)	3 (1%)	< 0.001
Major vascular complication	5 (1%)	5 (2%)	0	0.018
Minor vascular complication	37 (6%)	14 (6%)	23 (6%)	0.912
Stroke	17 (3%)	9 (4%)	8 (2%)	0.221
Myocardial infarction	0	0	0
Need for blood transfusion	106 (18%)	64 (28%)	42 (12%)	< 0.001
Intensive care duration, days	2 (1–5)	3 (1–8)	2 (1–4)	< 0.001
One-year all-cause mortality	78 (13%)	61 (27%)	17 (5%)	< 0.001
All-cause mortality	169 (29%)	109 (48%)	60 (17%)	< 0.001