Table 3.

Comparison of serum creatinine, urinary glutathione S-transferase, and glomerular filtration rate in acute kidney injury grades

	At 6 h	At 12 h	At 18 h	At 24 h	At 36 h	At 48 h	At 72 h
Serum creatinine
AKI I	1.61±0.47	2.01±0.58	2.19±0.54	2.37±0.42	2.52±0.43	2.78±0.58	2.89±0.60
AKI II/III	1.46±0.57	2.02±0.61	2.45±0.52	2.55±0.60	2.77±0.73	3.18±1.19	3.42±1.61
P	0.68	0.795	0.861	0.099	0.139	0.021	0.007
GFR
AKI I	41.89±15.03	34.80±15.04	30.20±8.83	25.75±10.40	25.50±4.07	23.34±5.54	23.04±5.32
AKI II/III	48.88±25.44	32.19±13.26	24.67±6.19	21.98±4.99	18.53±4.29	15.87±5.59	13.30±7.80
P	0.142	0.098	0.214	0.222	0.045	0.04	0.035
Urinary GST
AKI I	2.22±0.59	2.39±0.54	2.45±0.49	2.71±0.39	2.90±0.30	3.03±0.33	3.19±0.27
AKI II/III	2.24±0.50	2.49±0.45	2.93±0.52	3.01±0.55	3.06±0.52	3.43±0.88	3.58±1.44
P	0.098	0.077	0.044	0.099	0.12	0.111	0.098

AKI: Acute kidney injury, GFR: Glomerular filtration rate, GST: Glutathione S-transferase