Predictive models for kidney disease: improving global outcomes (KDIGO) defined acute kidney injury in UK cardiac surgery

Table 3 Total patients who met different acute kidney injury (AKI) criteria in the complete case data

	Ratio of postoperative to preoperative creatinine	Postoperative creatinine <354		Postoperative creatinine ≥354
		Difference from baseline
		<26	≥26	<26	≥26
No RRT	<1.5	16,094^a	2,152^b	9^a	11^d
	1.5 to 1.9	1^b	1,277^b		33^d
	2.0 to 2.9		543^c		94^d
	≥3.0		81^d		95^d
Commenced on RRT	<1.5	77^d	71^d		4^d
	1.5 to 1.9		137^d		7^d
	2.0 to 2.9		155^d		34^d
	≥3.0		43^d		77^d

Creatinine measure in μmol/L. ^aNo AKI, total = 16,103; ^bstage-1 AKI, total = 3,430; ^cstage-2 AKI, total = 543; ^dstage-3 AKI, total = 919. RRT, renal replacement therapy.

ISSN: 1364-8535