Table 2 Characteristics and outcomes of RRT patients

Number of patients

281

1314

 Age

66 (52–79)

67 (53–78)

0.141

 Male

178 (63.3%)

791 (60.2%)

<0.05

 APACHE II

22 (17–29)

16 (11–22)

<0.05

 ICU mortality

109 (38.8%)

236 (17.9%)

<0.05

 28-day mortality

130 (46.3%)

303 (23.0%)

<0.05

 ICU-LOS (days)

8 (5–17)

5 (3–10)

<0.05

 ICU overall costs (RMB)

104,000 (60000–213,000)

37,000 (19000–87,000)

<0.05

 ICU daily costs (RMB)

9765 (5580–14,625)

6143 (4333–9000)

<0.05

 RRT dependent on 7th day

173/220 (78.6%)

NR

<0.05

 RRT dependent on 28th day

41/144 (28.5%)

NR

<0.05