Table 5.

Logistic regression analysis for mortality risk factors according to cause of acute tubular necrosis

Cause of ATN	Factor	OR (95% CI)	P
Ischaemic	Oliguria	3.00 (1.64–5.49)	0.0003
	Acidosis	2.14 (1.09–4.19)	0.03
	Hyperkalaemia	2.64 (1.2–5.81)	0.015
	Multiple organ failure	2.67 (1.35–5.25)	0.005
Mixed	Oliguria	1.96 (1.04–3.68)	0.036
	One co-morbid condition or more	2.04 (1.09–3.83)	0.024
Ischaemic, mixed and nephrotoxic ATN (all patients)	Oliguria	2.53 (1.68–3.76)	<0.001
	One co-morbid condition or more	1.88 (1.24–2.84)	0.002
	Acidosis	1.90 (1.20–3.04)	0.003
	Multiple organ failure	1.90 (1.21–3.02)	0.003
	Respiratory insufficiency	2.40 (1.23–4.63)	0.005
	Shock	2.29 (1.30–4.08)	0.002

ATN, acute tubular necrosis; CI, confidence interval; OR, odds ratio.