The Effect of Long-Term Duration Renal Replacement Therapy on Outcomes of Critically Ill Patients with Acute Kidney Injury: A Retrospective Cohort Study

Table 2

Clinical outcomes for long-duration and non-long-duration renal replacement therapy.

Clinical outcomes	Total (n = 506)	Non-long-duration (n = 286)	Long-duration (n = 220)	value
Primary outcomes, n (%)
28-day all-cause mortality	168 (33.2%)	113 (39.5%)	55 (25%)	0.001
60-day all-cause mortality	247 (48.8%)	141 (52.9%)	106 (48.2%)	0.803
90-day all-cause mortality	268 (53%)	152 (53.1%)	116 (52.7%)	0.925
Secondary outcomes, n (%)
ICU mortality	203 (40.1%)	113 (39.5%)	90 (40.9%)	0.75
Hospital mortality	226 (44.7%)	124 (43.4%)	102 (46.4%)	0.5
Length of ICU stay, days	15 (9, 26)	11 (7, 17)	15 (22, 34.7)	<0.001
Length of hospital stay, days	24 (14, 36)	18 (12, 28)	32 (23, 43)	<0.001
Duration of mechanical ventilation, hours	262.2 (153.9, 454.4)	194 (114, 309)	409 (265.3, 685.8)	<0.001