Skip to main content

Table 1 Comparison of AKI patients’ characteristics in different departments

From: Incidence and diagnosis of Acute kidney injury in hospitalized adult patients: a retrospective observational study in a tertiary teaching Hospital in Southeast China

Department

Total

ICU

Other Internal

Surgery

Nephrology

P value

(n = 1401)

(n = 356)

(n = 520)

(n = 422)

(n = 103)

Age (years)

63.2 ± 37.2

64.4 ± 17.7

66.2 ± 17.9

59.7 ± 14.5

57.7 ± 18.4

<0.001*

Male (%)

939 (67.0)

249 (69.9)

352 (67.7)

282 (66.8)

56 (54.4)

0.030*

City (%)

816 (62.0)

214 (65.0)

363 (71.7)

191 (50.1)

48 (47.5)

<0.001*

Admission eGFR (%)

     

<0.001*

  ≥ 90 (mL/min/1.73 m2)

461 (32.9)

117 (32.8)

155 (29.8)

184 (43.6)

5 (4.8)

 

 60–89 (mL/min/1.73 m2)

357 (25.5)

86 (24.2)

134 (25.8)

130 (30.8)

7 (6.8)

 

 30–59 (mL/min/1.73 m2)

266 (19.0)

75 (21.1)

123 (23.6)

55 (13.0)

13 (12.6)

 

  < 30 (mL/min/1.73 m2)

317 (22.6)

78 (21.9)

108 (20.8)

53 (12.6)

78 (75.7)

 

Comorbidities (%)

 Cardiovascular disease

825 (58.9)

234 (65.7)

307 (59.0)

249 (59.0)

35 (34.0)

<0.001*

 Diabetes

251 (17.9)

68 (19.1)

117 (22.5)

57 (13.5)

9 (8.7)

<0.001*

 Pre-existing CKD

116 (8.3)

25 (7.0)

50 (9.6)

24 (5.7)

17 (16.5)

0.002*

 Chronic lung disease

91 (6.5)

30 (8.4)

36 (6.9)

11 (2.6)

14 (13.6)

<0.001*

 Chronic liver disease

106 (7.6)

28 (7.9)

47 (9.0)

30 (7.1)

1 (1.0)

0.042*

 Malignancy

415 (29.6)

67 (18.8)

201 (38.7)

133 (31.5)

14 (13.6)

<0.001*

Susceptible risk factors (%)

 Using diuretics

451 (32.2)

145 (40.7)

175 (33.7)

114 (27.0)

17 (16.5)

<0.001*

 Using nephrotoxic antibiotics

418 (29.8)

154 (43.3)

207 (39.8)

41 (9.7)

16 (15.5)

<0.001*

 Using contrast Agent

206 (14.7)

33 (9.3)

87 (16.7)

83 (19.7)

3 (2.9)

<0.001*

 Hypovolemia

521 (37.2)

220 (62.0)

112 (21.5)

182 (43.1)

7 (6.8)

<0.001*

 Operation

514 (36.7)

119 (33.4)

46 (8.8)

346 (82.0)

3 (2.9)

<0.001*

 Sepsis

154 (11.0)

78 (21.9)

49 (9.4)

21 (5.0)

6 (5.8)

<0.001*

Oliguria (%)

300 (21.4)

121 (34.0)

89 (17.1)

43 (10.2)

47 (45.6)

<0.001*

Extra-renal organs failure

674 (48.1)

254 (71.3)

329 (63.3)

188 (44.5)

25 (24.2)

<0.001*

AKI Stage (%)

     

<0.001*

 1

532 (38.0)

107 (20.1)

224 (42.1)

189 (35.5)

12 (2.3)

 

 2

309 (22.1)

67 (21.7)

120 (38.8)

112 (36.2)

10 (3.2)

 

 3

560 (40.0)

182 (32.5)

176 (31.4)

121 (21.6)

81 (14.5)

 

AKI classification (%)

     

0.068

 Pre-renal

589 (42.1)

121 (20.5)

224 (38.0)

239 (40.6)

5 (0.8)

 

 Renal

731 (52.2)

229 (31.3)

279 (38.1)

136 (18.6)

88 (12.0)

 

 Post-renal

80 (5.7)

6 (7.5)

17 (21.2)

47 (58.8)

10 (12.5)

 

Interval between admission and AKI diagnosed (days)

5 (1,11)

4 (1,11)

5 (1,12)

7 (3,12)

1 (0,2)

<0.001*

Diagnosis (%)

 Timely

616 (44.0)

192 (54.2)

243 (46.7)

92 (21.8)

88 (85.4)

<0.001*

 Delayed

46 (3.3)

14 (3.9)

15 (2.9)

13 (3.1)

4 (3.9)

0.008*

 Missed

739 (52.7)

149 (41.9)

262 (50.4)

317 (75.1)

11 (10.7)

<0.001*

Only 2 SCr detection (%)

59 (4.2)

8 (2.25)

36 (6.9)

14 (3.3)

1 (1.0)

<0.001*

Renal prognosis (%)

     

<0.001*

 Complete recovery

628 (44.8)

132 (37.1)

193 (37.1)

274 (64.9)

29 (28.2)

 

 Partial recovery

178 (12.7)

28 (7.9)

76 (14.6)

50 (11.8)

24 (23.3)

 

 Loss of renal function

321 (22.9)

122 (34.3)

112 (21.5)

44 (10.4)

43 (41.7)

 

 No dataa

274 (19.6)

74 (20.8)

139 (26.7)

54 (12.8)

7 (6.8)

 

 RRT dependence

228 (16.3)

88 (24.7)

46 (8.8)

34 (8.1)

60 (58.3)

<0.001*

ICU stay (days)

0 (0–5)

11 (5–21)

0 (0–0)

1 (0–2)

0 (0–0)

<0.001*

Hospital stay (days)

22.3 ± 19.8

23.6 ± 22.2

19.6 ± 17.7

26.0 ± 21.1

17.3 ± 9.9

<0.001*

Costs (thousand CNY)

57.2 (25.0–121.6)

106.6 (50.9–199.1)

34.3 (15.0–64.8)

80.6 (39.3–134.6)

23.8 (14.7–37.0)

<0.001*

30-day mortality

495 (35.3%)

227 (63.8%)

204 (39.2%)

51 (12.1%)

13 (12.6%)

<0.001*

  1. areferred to no SCr detection after diagnosis of acute kidney injury. *: P < 0.05.
  2. AKI acute kidney injury, CKD chronic kidney disease, CNY Chinese yuan, eGFR estimated glomerular filtration rate, ICU intensive care unit, RRT renal replacement therapy