Identification of risk factors and construction of a nomogram predictive model for post-stroke infection in patients with acute ischemic stroke

Table 2 Assignment table

Variable	Index	Assigned method
X1	Age	Continuous variable
X2	Diabetes	No = 0; Yes = 1
X3	Disturbance of consciousness	No = 0; Yes = 1
X4	NIHSS score at admission	Continuous variable
X5	Invasive operation	No = 0; Yes = 1
X6	COPD	No = 0; Yes = 1

COPD: Chronic obstructive pulmonary disease; NIHSS: National Institutes of Health Stroke Scale; IQR: Interquartile range.