Table 2.

Linear regression analysis for baseline SUV_max

Variable	Unadjusted β coefficient	95%CI	P-value	Adjusted β coefficient	95%CI	P-value
cT stage
cT1–2	Ref			Ref
cT3–4	7.76	3.64,11.87	< 0.001	6.61	2.40,10.81	0.002
cN stage
cN0	Ref			Ref
cN+	4.12	0.29,7.95	0.038	3.28	−0.49,7.05	0.087
Tumor location
GEJ	Ref			Ref
Distal third	1.41	−2.99,5.80	0.53	1.59	−3.10,6.29	0.50
Middle third	6.27	1.80,10.75	0.007	7.01	0.71,13.32	0.029
Superior third	−1.42	−11.26,8.42	0.78	−1.47	−12.05,9.11	0.78
Histology
Adenocarcinoma	Ref
Squamous cell	3.84	0.23,7.45	0.040	−0.630	−5.84,4.58	0.81

SUV_max Maximal standardized uptake value, GEJ Gastroesophageal junction, 95%CI 95% confidence intervals, Ref Reference category (β coefficient = 0)