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Table 1 Patients baseline characteristics

From: Development and validation of a nomogram for blood transfusion during intracranial aneurysm clamping surgery: a retrospective analysis

 

Total

Non-transfused

Transfused

P-value

Sex

   

< 0.001

Man

141 (37.6%)

116 (82.3%)

25 (17.7%)

 

Woman

234 (62.4%)

151 (64.5%)

83 (35.5%)

 

Age (Mean (SD))

60.4 (± 9.3)

60.3 (± 9.0)

60.7 (± 9.9)

0.54

Weight (Mean (SD))

63.7 (± 9.7)

64.1 (± 9.8)

62.8 (± 9.5)

0.13

Multi-site

   

0.85

One-site

337 (89.9%)

239 (70.9%)

98 (29.1%)

 

Multi-site

38 (10.1%)

28 (73.7%)

10 (26.3%)

 

Ruptured

   

< 0.001

None

147 (39.2%)

124 (84.4%)

23 (15.6%)

 

Ruptured

228 (60.8%)

143 (62.7%)

85 (37.3%)

 

Cerebral-disease

   

0.54

None

118 (31.5%)

87 (73.7%)

31 (26.3%)

 

Present

257 (68.5%)

180 (70.0%)

77 (30.0%)

 

Cardiovascular-disease

  

0.41

None

359 (95.7%)

257 (71.6%)

102 (28.4%)

 

Present

16 (4.3%)

10 (62.5%)

6 (37.5%)

 

Pulmonary-disease

   

0.52

None

347 (92.5%)

245 (70.6%)

102 (29.4%)

 

Present

28 (7.5%)

22 (78.6%)

6 (21.4%)

 

Renal-disease

   

0.44

None

356 (94.9%)

255 (71.6%)

101 (28.4%)

 

Present

19 (5.1%)

12 (63.2%)

7 (36.8%)

 

DM

   

0.3

None

357 (95.2%)

252 (70.6%)

105 (29.4%)

 

Present

18 (4.8%)

15 (83.3%)

3 (16.7%)

 

ASA

   

0.029

I~II

60 (16.0%)

50 (83.3%)

10 (16.7%)

 

III~V

315 (84.0%)

217 (68.9%)

98 (31.1%)

 

Heart-function

   

0.68

I~II

369 (98.4%)

262 (71.0%)

107 (29.0%)

 

III~IV

6 (1.6%)

5 (83.3%)

1 (16.7%)

 

WBC (Mean (SD))

11.2 (± 4.6)

10.9 (± 4.5)

11.8 (± 4.9)

0.064

HB (Mean (SD))

129.8 (± 17.2)

134.0 (± 15.4)

119.8 (± 17.3)

< 0.001

PLT (Mean (SD))

206.8 (± 60.0)

218.2 (± 59.5)

178.9 (± 51.9)

< 0.001

PT (Mean (SD))

13.4 (± 0.8)

13.4 (± 0.9)

13.5 (± 0.7)

0.18

APTT (Mean (SD))

33.2 (± 3.9)

33.3 (± 4.0)

33.1 (± 3.8)

0.58

Fibrinogen (Mean (SD))

3.3 (± 1.0)

3.2 (± 0.9)

3.4 (± 1.1)

0.55

D-dimer (Mean (SD))

2.5 (± 3.4)

2.2 (± 3.1)

3.4 (± 4.0)

< 0.001

TP Mean (Mean (SD))

67.5 (± 7.2)

67.6 (± 7.1)

67.4 (± 7.6)

0.74

ALB Mean (Mean (SD))

41.9 (± 4.0)

42.1 (± 3.6)

41.4 (± 4.7)

0.52

Vasopressors

    

none

198 (52.8%)

153 (77.3%)

45 (22.7%)

0.006

present

177 (47.2%)

114 (64.4%)

63 (35.6%)

 

Blood transfusion (mL) (median [IQR])

0.00 [0.00, 600.00]

0.00 [0.00, 0.00]

1100 [800, 1250]

< 0.001

Ventilation duration (h) (median [IQR])

0.00 [0.00, 12.00]

0.00 [0.00, 6.00]

9.00 [0.00, 24.00]

< 0.001

Postoperative hospital stay (median [IQR])

16.00 [12.00, 22.00]

16.00 [12.00, 21.00]

18.00 [13.00, 23.75]

0.104

  1. Results are expressed as mean (SD) for continuous data and n (proportion) for categorical data. APTT, Activated partial thromboplastin time; ASA, American Society of Anesthesiologists; DM, Diabetes mellitus; HB, Hemoglobin; PLT, Platelet; PT, Prothrombin time; TP, Total protein; ALB, Albumin; WBC, White blood cell
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