Table 1.

Dataset description.

Name	Type	Description	Role
Group	Categorical	No surgery/having surgery	Target
Gender	Categorical	Female/male	Input
HGB	Numeric	Hemoglobin	Input
NEU	Numeric	Neutrophil	Input
LYM	Numeric	Lymphocytes	Input
MCV	Numeric	Mean corpuscular volume	Input
MPV	Numeric	Mean platelet volume	Input
HTC	Numeric	Hematocrit	Input
PLT	Numeric	Thrombosis	Input
CRP	Numeric	C-reactive protein	Input
WBC	Numeric	White blood cells (leukocytes)	Input

Categorical data represent types of data which may be divided into groups. Numerical data are data expressed in numbers, unlike letters or words. Target: dependent variable; input: independent variable.