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Table 1 Characteristics of ICU patients used to verify the prognostic predictive power of urinary angiotensinogen as an acute kidney injury biomarker

From: Urinary angiotensinogen predicts adverse outcomes among acute kidney injury patients in the intensive care unit

 

No RRT and Survival

RRT or Death

P-value

Number of patients

22

23

 

Age, yrsa

62.9 ± 16.1

54.4 ± 17.6

0.1

Caucasian, % (n)

64 (14)

65 (15)

0.84

Male, % (n)

55 (12)

65 (15)

0.67

AKI etiology, n (%)

   

Sepsis

23 (5)

43 (10)

0.25

Pre-renal

32 (7)

4 (1)

0.01

Ischemic ATN

9 (2)

13 (3)

1

Other

36 (8)

39 (9)

0.91

Serum creatinine (sCr), mg/dL

   

Baseline sCrb

1.15 (0.8, 1.6)

1.1 (1.0, 1.5)

0.98

sCr at collectiona

2.1 ± 0.8

2.5 ± 0.8

0.06

Change in sCrb, %

150 (130 to 189)

200 (150 to 257)

0.07

AKIN stage at collection

  

0.14

Stage 1

17

11

 

Stage 2

4

8

 

Stage 3

1

4

 

Outcomes, % patients (n)

   

RRT

0

52 (12)

< 0.001

Death

0

78 (18)

< 0.001

Other variables

   

MAP on day of collectionb

74.9 (70.4 to 86.8)

68.6 (64.5 to 84.1)

0.08

History of HTN, % patients (n)

91 (20)

48 (11)

0.005

History of diabetes mellitus, % patients (n)

55 (12)

22 (5)

0.05

History of ACE inhibitor or ARB use, % patients (n)

48 (12)

17 (4)

0.03

  1. aMean ± SD; bmedian and IQR; categorical data are shown as percentage and number. P-values are shown for the χ2 or Fisher exact test, as appropriate. RRT, renal replacement therapy; AKI, acute kidney injury; ATN, Acute tubular necrosis}; AKIN, Acute Kidney Injury Network; MAP, Mean arterial pressure}; HTN, Hypertension}; ARB, Angiotensin receptor blocker}.