Table 2 Quantification and assignment for risk factors of intracranial infection after microvascular decompression.

From: Analysis of risk factors of intracranial infection after microvascular decompression

Factor

Variables

Quantification and Assignment

Gender

X1

‘‘0’’ for Female, ‘‘1’’ for male

Age

X2

‘‘0’’ for less than 60 years old, ‘‘1’’ for more than or equal to 60 years old

Smoking history

X3

‘‘0’’ for no and ‘‘1’’ for yes

BMI

X4

‘‘0’’ for less than 24, ‘‘1’’ for more than or equal to 24

Duration of operation

X5

‘‘0’’ for less than 4 h, ‘‘1’’ for more than or equal to 4 h

Hypertension,

X6

‘‘0’’ for no and ‘‘1’’ for yes

Diabetes

X7

‘‘0’’ for no and ‘‘1’’ for yes

CSF leakage

X8

‘‘0’’ for no and ‘‘1’’ for yes

Mastoid air chamber opening

X9

‘‘0’’ for no and ‘‘1’’ for yes

Implants

X10

‘‘0’’ for no and ‘‘1’’ for yes

Intra-operative use of antibiotics

X11

‘‘0’’ for no and ‘‘1’’ for yes

Drainage tube intubation

X12

‘‘0’’ for no and ‘‘1’’ for yes

Hair removal

X13

‘‘0’’ for partial, ‘‘1’’ for total

bed time after surgery

X14

‘‘0’’ for less than 4 days, ‘‘1’’ for more than or equal to 4 days

Seasons

X15

‘‘0’’ for summer, ‘‘1’’ for spring and autumn, ‘‘2’’ for winter

Disease types

X16

‘‘0’’ for TN and ‘‘1’’ for HFS

Intracranial infection

Y

‘‘0’’ for no and ‘‘1’’ for yes

  1. BMI body mass index, CSF cerebrospinal fluid, TN trigeminal neuralgia, HFS hemifacial spasm.