Table 2 Univariate logistic regression analysis predictors of tract hemorrhage during external ventricular drain placement, n = 147.

From: Predictors of tract hemorrhage after external ventricular drain placement: a single-center retrospective study

Variable

OR

95%CI

p-value

Sex

   

 Female

1.8

0.7–4.8

0.23

 Male

Ref

  

Race/Ethnicity

   

 White

Ref

  

 Black

1.7

0.4–6.5

0.5

 Hispanic

2.3

0.7–9.4

0.25

Etiopathogenesis of ICP elevation

  

 IPH

2.7

1.03–7.4

0.043

 Other etiologies

Ref

  

IPH location

   

 Supratentorial

Ref

  

 Infratentorial

2

0.6–6.7

0.3

Comorbidities

   

 Hypertension

1.1

0.4–3.1

0.8

 Other

Ref

  

Antithrombotic therapy

   

 No

1.7

0.5–5.4

0.4

 Yes

Ref

  

EVD setting

   

 NCCU

0.8

0.3–2.6

0.7

 Operating room

Ref

  

Side EVD

   

 Right

1.25

0.34–4.6

0.74

 Left

Ref

  

Computer navigation system

  

 No

1.25

0.34–4.6

0.74

 Yes

Ref

  

Additional Intervention

   

 Yes

0.6

0.2–1.6

0.3

 No

Ref

  

Clinical characteristics and laboratories

   

 Diastolic Blood Pressure

   

  ≤ 100 mmHg

Ref

  

  > 100 mmHg

0.88

0.3–2.6

0.8

 Glycaemia

   

  ≤ 140 mg/dl

Ref

  

  > 140 mg/dl

0.44

0.16–1.17

0.1

 WBC count

   

  ≤ 11 × 10³/µL

3.7

1.2–11.7

0.03

  > 11 × 10³/µL

Ref

  

 Hemoglobin

   

  ≤ 12 g/dL

0.7

0.2–2.3

0.6

  > 12 g/dL

Ref

 

0.6

 Volume IPH

   

  ≤ 30 cc

Ref

  

  > 30 cc

1.7

0.6–4.8

0.3

 GCS score

   

  > 12

Ref

  

  ≤ 12

0.5

0.19–1.3

0.16

 Platelet count

   

  > 120 × 10³/µL

Ref

  

  ≤ 120 × 10³/µL

5

1.3–20

0.02

Abbreviations: EVD, external ventricular drain; GCS, Glasgow Coma Scale; IPH, intraparenchymal hemorrhage; ICP, intracranial pressure; NCCU, neurocritical care unit; SAH, subarachnoid hemorrhage; WBC, white blood cells