(a).

Predictive factors	Risk code	Regression coefficient	P value	Odds ratio (95% CI)
Grafts with ARE (n = 1155)
Constant		−7.082	<0.001
Cold ischaemia time	Increase per h	0.091	<0.001	1.094 (1.064–1.124)
Recipient's residual diuresis	If <500 mL/d, then 1, else 0	0.851	<0.001	2.3 (1.6–3.5)
Perioperative saline loading	If no, then 1, else 0	1.200	<0.001	3.3 (2.0–5.4)
Donation after cardiac death	If yes, then 1, else 0	1.292	0.001	3.6 (1.7–7.8)
Recipient's BMI	Increase per kg/m2	0.066	0.004	1.068 (1.026–1.113)
Donor's terminal creatinine	Increase per mg/dL	0.730	0.008	2.1 (1.3–3.4)
Recipient's gender	If male, then 1, else 0	0.594	0.009	1.8 (1.2–2.7)

Log likelihood chi-square (7 DF): 163.71, P < 0.0001. Goodness of fit: P = 0.80.