Table 2 The characteristics of acute worsening of renal function in patients classified by the index eGFR

AWRF incidence, n/N (%)

445/1005 (44.3)

294/738 (39.8)

151/267 (56.6)

<0.001

RIFLE category of AWRF, n/N (%)

<0.001

 Risk

282/445 (63.4)

204/294 (69.4)

78/151 (51.7)

 Injury

127/445 (28.5)

63/294 (21.4)

64/151 (42.4)

 Failure

36/445(18.1)

27/294 (9.2)

9/151 (6.0)

Maximum serum creatinine during hospitalization, μmol/L

182 ± 118

145 ± 73

254 ± 152

<0.001

Median time of maximum RIFLE class reached ^a , day

4 (1 ~ 8)

4(1 ~ 8)

4(2 ~ 8)

0.118

RRT required, n/N (%)

25/445 (5.6)

6/294 (2.0)

19/151 (12.6)

<0.001

Diuretic resistance, n/N (%)

88/445(19.8)

52/294(17.7)

36/151(23.8)

0.123

Ultrafitration for diuretic resistance, n/N (%)

19/445(4.3)

6/294 (2.0)

13/151 (8.6)

0.002