Table 5.

Simple and multiple linear regression analyses of global health status

Simple analysis				Multiple analysis
Variable	p-value	Variable	p-value	Variable	p-value
Age	0.339	Number of harvested LNs	0.130	Reconstruction method	< 0.001a)
Sex	0.057	Degree of LND	0.180	Postoperative complication	< 0.001a)
BMI	0.828	LVI	0.284	Reflux esophagitis	0.003a)
Tumor location	0.601	PNI	0.022a)	Operation duration	0.001a)
Proximal margin	0.436	Adjuvant chemotherapy	0.052
Distal margin	0.128	Operation duration	0.008a)
Differentiation	0.703	Blood loss volume	0.219
Lauren classification	0.416	Postoperative hospital stay	0.215
Tumor size	0.085	Postoperative complication	0.060
pT category	0.035a)	Reflux esophagitis	0.001a)
pN category	0.016a)	Reconstruction method	0.001a)
pTNM category	0.015a)

BMI, body mass index; LNs, lymph nodes; LND, lymph node dissection; LVI, lymphovascular invasion; PNI, perineural invasion.

^a)Statistically significant values.