Table 3.

Frequency and characteristics of AKI based on AKIN criteria.

	Selenium	NAC	Vitamin C	Control	P value
Frequency of AKI	21 (31.8)	15 (22.1)	14 (20.9)	10 (14.1)	0.096
Stage I	19 (31.7)	13 (21.7)	13 (21.7)	6 (10)	0.020
Stage	1 (1.7)	2 (3.3)	1 (1.7)	3 (5)	0.700
Stage III	1 (1.7)	__	__	1 (1.7)	0.570
Day of occurrence	3.05±1.62	2.80±1.37	2.57±1.60	3.40±1.64	0.677
Day of maximum severity	3.24±1.57	3.20±1.52	2.57±1.60	3.60±1.57	0.558
Frequency of recovery	16 (26.7)	9 (15)	13 (21.7)	7 (11.7)	0.228
Duration of AKI	1.86±0.81	1.78±0.97	1.23±0.43	4.29±8.26	0.465

Data are presented as mean ± standard deviation or numbers (percentage).

AKI=Acute kidney injury; AKIN=Acute Kidney Injury Network; NAC=N-acetylcysteine