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Table 1 Descriptive characteristics of the patients enrolled in this study (N = 269). Numbers indicate N and % for categorical variables and Mean and SD for continuous variables. P values are reported from Student’s t test for continuous variables and Pearson’s chi-square test for categorical variables

From: Desmopressin and bleeding risk after percutaneous kidney biopsy

Characteristic

Desmopressin given

Desmopressin not given

 

P

Mean / N

SD / %

Mean / N

SD / %

Age (y)

46.05

14.44

48.22

13.62

0.22

Females

55

55.00

89

52.66

0.71

Hispanic ethnicity

62

62.00

86

50.89

0.08

Race

    

0.28

 African American

52

52.00

65

38.46

 

 White

32

32.00

71

42.01

 

 Asian

2

2.00

5

2.96

 

 American Indian/ Alaska Native

1

1.00

1

0.59

 

 Other

13

13.00

27

15.98

 

Emergent biopsy

26

26.00

30

17.75

0.11

Diabetes

38

38.00

56

33.14

0.42

Hypertension

81

81.00

140

82.84

0.70

Body mass index (Kg/m2)

29.35

7.01

30.05

6.80

0.42

Systolic blood pressure (mmHg)

133.15

15.99

134.06

18.21

0.68

Diastolic blood pressure (mmHg)

76.00

10.19

76.45

10.85

0.74

Hemoglobin (g/dl)

10.38

1.76

11.51

1.89

< 0.001

Platelet count (× 103/μl)

214.82

67.82

245.02

87.88

0.00

Platelet functional assay - Epinephrine (s)

141.83

65.72

152.76

54.45

0.57

Platelet functional assay - ADP (s)

102.83

32.12

106.26

41.10

0.79

Prothrombin time (min)

13.62

1.10

13.58

1.40

0.80

INR

1.05

0.11

1.04

0.11

0.26

Partial thromboplastin time (min)

30.68

4.12

31.42

6.10

0.28

Bleeding time (min)

7.21

2.81

4.77

2.06

< 0.001

Blood urea nitrogen (mg/dl)

43.60

25.67

29.22

17.78

< 0.001

Serum creatinine (mg/dl)

3.34

2.60

1.79

1.38

< 0.001

eGFR (ml/min)

38.56

38.81

64.93

49.59

< 0.001

Need for RBC treatment

5

5.00

1

0.59

0.02

Need for FFP

2

2.00

1

0.59

0.29

Number of glomeruli

20.96

9.27

19.36

9.16

0.17

Number of passes

2.58

0.10

2.88

0.10

0.05

Indication for biopsy

 Nephrotic syndrome

42

42.00

76

44.97

0.64

 Nephritic

53

53.00

69

40.83

0.05

 Chronic hematuria

2

2.00

6

3.55

0.47

 Acute kidney failure

5

5.00

5

2.96

0.39

 Transplant kidney

7

7.00

17

10.06

0.39

 Chronic kidney disease

35

35.00

50

29.59

0.36