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Table 1 Comparison of patients with and without SSH

From: Risk factors for spinal subdural hematoma after minimally invasive transforaminal lumbar Interbody Fusion (MI-TLIF): a multivariate analysis

Variable

Patients with SSH (nā€‰=ā€‰17)

Patients without SSH (nā€‰=ā€‰198)

Ļ‡2/t

P value

Age

65.35ā€‰Ā±ā€‰9.546

65.81ā€‰Ā±ā€‰9.38

0.194

0.749

Sexā€‰=ā€‰male

9 (52.9%)

92 (46.5%)

0.264

0.608

Hypertension

13 (76.5%)

100 (50.5%)

4.233

0.040*

Diabetes

10 (58.8%)

46 (23.2%)

10.296

0.001*

Hemoglobin

132.65ā€‰Ā±ā€‰17.14

138.35ā€‰Ā±ā€‰15.09

1.479

0.376

Prothrombin time

11.57ā€‰Ā±ā€‰0.33

11.41ā€‰Ā±ā€‰0.30

-2.107

0.598

APTT

28.49ā€‰Ā±ā€‰2.16

28.23ā€‰Ā±ā€‰1.99

-0.512

0.924

INR

1.00ā€‰Ā±ā€‰0.06

0.97ā€‰Ā±ā€‰0.51

-1.974

0.266

PLT

207.35ā€‰Ā±ā€‰39.60

203.85ā€‰Ā±ā€‰35.49

-0.387

0.746

Preoperative anticoagulant therapy

3 (17.6%)

29 (14.6%)

0.111

0.739

Postoperative anticoagulant therapy

15 (88.2%)

75 (37.9%)

16.312

<0.001*

Multilevel procedure (>ā€‰1)

8 (47.1%)

62 (31.3%)

1.768

0.184

  1. *Pā€‰<ā€‰0:05